[[caption-width-right:300:Your little sister's J-Pop has never looked so ''brutal''. [[note]] The members, from left to right: [=YuiMetal=]/Yui Mizuno (scream and dance), Su-Metal/Suzuka Nakamoto (vocal and dance) and [=MoaMetal=]/Moa Kikuchi (scream and dance).[[/note]]]]

->''"Leave it to the Japanese to find a way to make fuckin' death metal cute."''
-->-- '''Music/RobZombie'''

Originally a sub-unit of the Idol group Music/SakuraGakuin, [=BabyMetal=] (also stylized as BABYMETAL) was formed by the members of the Heavy Music Club (Juonbu) of Sakura Gakuin under the concept of a fusion of heavy metal and Idol music, now known as "kawaii metal". They are known for their energetic live shows, which feature intricate yet fun choreography mixed with soaring vocals from lead singer Su-Metal, backed up by a quartet of some of Japan's top metal musicians. Officially, they claim belief in "The Fox God" who brought them to metal and uses them as conduits to spread its message of "love and joy through metal" across the world. Instead of the standard "devil horns", they use a modified "kitsune" sign (seen in the photo at right).

In reality, Kei Kobayashi (known as [=KobaMetal=]), a producer at the Amuse talent agency and a longtime metalhead with connections in Tokyo's underground metal scene, discovered Suzuka during her time as one of the [[Manga/ZettaiKarenChildren Karen Girl's]]. Realizing her potential, he decided to form a group around her once she joined Sakura Gakuin, figuring her unusually powerful voice would be a good fit for metal. Yui and Moa were chosen as backup due to their unique chemistry – the same reason they were often featured together during Sakura Gakuin – and also their smallness, as Koba liked the idea of Su being flanked by two tiny girls.[[labelnote:*]] Koba lucked out there as Yui and Moa ''both'' turned out to be very late-bloomers, ended their growth periods oddly close in height (Yui is ~2cm taller), and are ''still'' shorter than Su – albeit by an inch or less in Yui's case. Su's trademark high ponytail and use of 1" heels during performances make her appear taller than she actually is (160cm/5'3").[[/labelnote]]

The very first Babymetal song, "Doki Doki☆Morning", was recorded in October 2010, first performed in public a month later, and appeared as a track on Sakura Gakuin's ''2010 Nendo: Message'' CD. The music video for the song was released online and as a DVD single in October 2011 and quickly caught the attention of the Idol fanbase. During this time, they recorded several more songs. Their first CD single, ''BABYMETAL × Kiba of Akiba'' came out in March 2012 and reached 3rd place on the Oricon indie charts and number one in the Tower Records Shibuya weekly indie ranking. That July, they released their second single, "Headbanger"[[labelnote:*]] (also stylized as "Headbangya!" or "Headbangeeeeerrrrr!!!!!!!")[[/labelnote]], and the next month made their first appearance at Japan's [=SummerSonic=] music festival – at the time, the youngest group to ever perform there. They have performed at the festival every year since.

In early 2013, Suzuka graduated from junior high school, and by extension from Sakura Gakuin. At this point, Babymetal was spun off as an independent group (although Yui and Moa continued to perform with Sakura Gakuin until their own graduations in March 2015). During this period, they released "Ijime, Damé, Zettai" as a single[[labelnote:*]] (this was only the second song Babymetal ever recorded – "Iine!" was third – and they had been performing it for over a year)[[/labelnote]] and premiered their first post-Juonbu song, "Megitsune". Near the end of 2013, it was announced that the girls would be performing in future shows with a live band[[note]] ([[FakeBand the people dressed as skeletons, called BABYBONES, mimed to a backing track]])[[/note]] known as the Kami Band, a group of top-tier musicians who have built up a fanbase in their own right.

On February 25th 2014, Babymetal uploaded the music video for [[https://youtu.be/WIKqgE4BwAY Gimme Chocolate!!]] (using footage from the "Legend 1997"[[labelnote:*]] Su's 16th birthday[[/labelnote]] concert at Makuhari Messe). The video went viral, catching the attention of J-pop and metal fans outside Asia, to the point that non-Japanese UsefulNotes/MainstreamMedia picked it up. The next day, they released their first studio album, [[SelfTitledAlbum self-titled]]. Three days after that, they performed two sold-out shows at the legendary Budokan Arena[[labelnote:*]] (capacity ~10,000 each day)[[/labelnote]] – the youngest group ever to perform there. At the end of the second day, it was announced that "the latest chapter of the Metal Resistance [was] over" and the band would continue their work overseas. Concert dates in Paris, Cologne, London, and Los Angeles followed, along with a few openings for Music/LadyGaga. The highlight of this tour, though, was their appearance at [=SoniSphere=] 2014 – again the youngest act ever to perform there – where they got shifted to the Main Stage at the last minute and performed in front of some 50,000 skeptical British metalheads. The result, [[https://youtu.be/Ro-_cbfdrYE well...]] The tour went well enough that further shows in New York and Brixton were quickly arranged. At Brixton, they premiered a new song, "Road Of Resistance", the first time they debuted a song outside Japan. The 2014 tour concluded in January 2015 at Saitama Super Arena[[labelnote:*]] (capacity 20,000 and coincidentally the place where Karen Girl's had their final performance in 2009; Babymetal have played the venue at least twice since)[[/labelnote]]

2015 was relatively quiet early on as Yui and Moa prepared for their graduation from Sakura Gakuin. Afterwards, the group embarked on another world tour, during which they (at the invitation of British metal group Music/DragonForce, with whom they had collaborated on "Road Of Resistance") played "Gimme Chocolate!" at Download Festival 2015 despite its promoter saying publicly he would never invite them. The tour ended with two sold-out shows at Yokohama Arena[[labelnote:*]] (capacity 17,000)[[/labelnote]], the debut of a new song, [[https://youtu.be/TZRvO0S-TLU "THE ONE",]] and the announcement of a second studio album.

On March 17th 2016, [[https://youtu.be/GvD3CHA48pA the music video for "Karate"]] debuted as the first part of a massive international promotion for their second studio album, ''Metal Resistance'', which was released worldwide on April 1st – hitting #1 on the US Billboard World Chart and becoming the first Japanese act in 53 years to chart on Billboard's Top 40. The next day they performed at Wembley Arena[[labelnote:*]] (capacity 12,500)[[/labelnote]], and three days after that performed "Gimme Chocolate!" on ''Series/TheLateShowWithStephenColbert'' before continuing their world tour, which ended with two sold-out nights at the 55,000 capacity Tokyo Dome. Towards the end of the year, they opened for the Music/RedHotChiliPeppers during RHCP's UK tour, which ended in London with drummer Chad Smith surprising Su-Metal with a cake, as her 19th birthday was the next day (Japan-time).

2017 marked a shift as the group spent the first half of the year as the opening act for various larger bands, including Music/{{Metallica}} in Seoul – the first time the girls visited Korea – Music/GunsNRoses in Japan, and RHCP again along with Music/{{Korn}} in the USA. In between opening gigs, they played one headline concert (sold out, of course) at the Hollywood Palladium[[labelnote:*]] (capacity 4,000)[[/labelnote]]. After that, they returned to Japan and held a series of "Fox Festival" shows in Tokyo, Nagoya, Saitama, and Osaka, most of which had restrictions on audience and dress – i.e. women only, children and seniors only, corpse-paint dress code. They gave no interviews at all during the year[[note]] (and only two public addresses, both in English: one to promote their appearance on [=SummerSonic's=] Main Stage, and the other - in which only Su spoke - to thank fans for their winning Loudwire's "Most Dedicated Fanbase" award)[[/note]] – a stark contrast to 2015 and 2016 – which made it feel like the group had gone dark despite their extensive touring. That the group did not visit Europe, where they have a large fanbase, at all that year was also a significant factor in this.

On December 2nd and 3rd, 2017, Babymetal held its "Legend S - Baptism XX" shows at Hiroshima's Green Arena to celebrate Su's 20th birthday – she would become a legal adult in Japan later in the month (this is far from the first time Su's had a birthday concert, but it ''was'' the first time Babymetal performed in her hometown). Unfortunately, [[http://www.babymetal.com/news/detail.php?id=133 Yui had to pull out at the last minute due to an unspecified medical issue.]] It marked the first time Babymetal had ever performed an entire concert without all three girls present.

As to what the future holds for Babymetal? Well, [[CatchPhrase Only The Fox-God Knows!]] [[labelnote:Temporary Note -]] As far as 2018 goes, the group are playing several summer music festivals they've played before, but the first quarter of the year will see zero activity as Yui and Moa prepare to graduate from high school. Also, the out-of-left-field death of Kami Band guitarist Mikio Fujioka means Koba must find a new guitarist since Leda is likely to be too busy.[[/labelnote]]

The group also provides the theme song for the ''WesternAnimation/{{Unikitty}}'' cartoon.

Compare and contrast to Music/KyaryPamyuPamyu for a similar Internet phenomenon. Has [[http://en.wikipedia.org/wiki/Babymetal an entry]] on TheOtherWiki, as do all three girls. More info about the girls themselves can be found on the CharacterSheet of their [[Characters/SakuraGakuin former parent group]], in the 2013 (Su) and 2015 (Yui/Moa) Graduates sections.

* [[https://youtu.be/cirhQ8iLdbw "Doki Doki☆Morning"]] (2011)[[note]] (DVD-only; the track itself debuted on Sakura Gakuin's 2010 Nendo album)[[/note]]
* [[https://youtu.be/qVdBBOpSoN4 "BABYMETAL × Kiba of Akiba"]] (2012)[[note]] A-side was "Iine!", its MV is linked here; B-side was "Answer for Animation with You"[[/note]]
* [[https://youtu.be/2IzR_ClTE8Y "Headbangeeeeerrrrr!!!!!"]] (2012)[[note]] B-side was "Uki Uki★Midnight"[[/note]]
* [[https://youtu.be/nDqaTXqCN-Q "Ijime, Damé, Zettai"]] (2013 – the group's major debut)[[note]] B-side was "Catch Me If You Can"[[/note]]
* [[https://youtu.be/cK3NMZAUKGw "Megitsune"]] (2013)[[note]] The first single produced independently of Sakura Gakuin – B-side was "Akatsuki" in the regular edition and "Onedari Daisakusen" in the limited edition[[/note]]
* [[https://youtu.be/zTEYUFgLveY "Road of Resistance"]] (2015)[[note]] Digital release, but ''was'' later included on EU/NA release of ''BABYMETAL''[[/note]]
* [[https://youtu.be/WIKqgE4BwAY "Gimme Chocolate!!"]] (2015)[[note]] (UK release only)[[/note]]
* [[https://youtu.be/GvD3CHA48pA "Karate"]] (2016)[[note]] (digital release only)[[/note]]

* ''BABYMETAL'' (2014)
* ''Metal Resistance'' (2016)
!!Tropes da o!
* AlterEgoActing: In multiple print interviews, Suzuka has referred to Su-Metal as almost a separate person inhabiting her body, allowing her to accomplish things she never could as regular Suzuka, and that it was only around the time of Tokyo Dome that she felt she was able to gain some control over Su-Metal so they could progress in tandem. Officially, the band's management says that onstage, their "Metal" personas take over as the Fox-God guides their movements.[[labelnote:*]] In psychology, this is known as the [[https://en.wikipedia.org/wiki/Flow_(psychology) flow,]] colloquially known as "getting in the zone". Not uncommon amongst artists and athletes.[[/labelnote]]
** Not nearly as clear-cut with Moa or especially Yui. Yui may not be a ShrinkingViolet onstage like she is off of it, but she has said she ''wishes'' she could reach Su's level of persona.
* AnimalMotif: Foxes.
** Most prominent is their version of the heavy metal horns, the Fox sign, which is the traditional fox hand gesture in Japan.
** Their backstory is that they are chosen by the Fox God to unite the world through their music.
** Several album covers (e.g. ''Babymetal x Kiba of Akiba'' and ''Megitsune'') feature foxes on the cover, and foxes appear a lot in their stage design.
* AscendedExtra: They're more popular than their parent group, Music/SakuraGakuin, especially outside Japan. Although Babymetal's popularity has gotten some international fans interested in Sakura Gakuin. It is amusing to see English comments on SG music videos from avowed metalheads trying to reconcile their "metal street-cred" with their enjoyment of a group of young girls singing and dancing to upbeat J-pop. Amusingly, this is ''exactly'' what Yui said she hoped would happen. Some examples:
--> - excuse me while I PUNCH A FUCKING WALL to get my Manliness back!!!\\
- Dammit! I'm going from Babymetal down the Sakura Gakuin rabbit hole, like others warned. Next thing you know I'll be buying their nendo [=CDs=]. Help me!\\
- Now I'm questioning my toxic way of life and want to be more friendly.\\
- Nothing beats trying to explain to my mom that this is what her metalhead son listens to
* AudienceParticipationSong:
** In the album, "Ii ne!" has a part in the middle where the band rap to TrapMusic. In concerts, this part is where they engage in call-and-response with the audience, shouting out the venue name.
** Before "Ijime, Dame, Zettai" is performed, a short video is played, commanding the audience to form a Wall of Death.
** When entering the final chorus to "Karate", Su-metal will give the command, "Everybody jump!" Most of the time, everybody jumps.
** During live performances of "Road of Resistance", as can be seen in the music video, the band often extends the "woooh" part for the audience to sing together on Su-metal's command. Before the song starts, she performs a hand parting gesture to signal everyone to form a Wall of Death.
* BilingualBonus:
** Many songs contain the occasional English word or phrase, but the most notable example is their concert opener, "Babymetal Death" - a deliberate bilingual pun, since what they're actually shouting is 「ベビーメタルです!」 ("I am Babymetal"), but the pronunciation of ''desu'' is similar to the English "Death" - a fact not lost on the promoters. Or the girls, who will sometimes ''say'' "death" when introducing themselves as an intentional pun – Moa in particular likes to do this.
** "The One" has more English in it than Japanese. The international edition of the song is entirely in English. This is now the version performed even in Japan. The original bilingual cut is only on Youtube and the domestic (Japan) release of ''Metal Resistance''.
* CatchPhrase: When asked something they cannot (or not allowed to) answer in interviews, their go-to answer is "Only the Fox God knows". Fans shorten this to OTFGK in Website/{{Reddit}} and other online forums.
* TheChosenOne: Their backstory is they're chosen by the Fox God to unite the world through their music.
* CoordinatedClothes: All three girls' costumes are a metal take on the Gothic Lolita fashion style, complete with fancy hair decorations, petticoats, and poofy dresses.
** Yui's and Moa's outfits are perfectly mirrored – Yui's glove is on her right hand, Moa's is on her left. Several of their dance moves also mirror each other. They make the Fox-Sign mirrored too – Moa's is left-over-right; Yui's is right-over-left.
* CreepyCoolCrosses: They use it a lot, both during big shows and in TheMerch. Special mention goes to the "LEGEND 1997" concert on Suzuka's 16th birthday, when she was ''crucified'' in front what appeared to be a giant statue of the Virgin Mary, which promptly shattered. Since that concert, Su has been crucified no fewer than four times.
* DarkerAndEdgier: Compared to other Idol groups, when they were still a subunit of Sakura Gakuin.
* DrumAndBass: "Awadama Fever" starts with an electronic drum-and-bass rhythm which then melds into industrial metal riffs.
* EarlyInstallmentWeirdness: Their first song, "Doki Doki☆Morning", has a more distinct "Idol-like" sound than their following songs. ''Doki Doki☆Morning'''s MV appeared to have a very low budget – and most of that probably went to the music. The costumes used in the video were made from a combination of the girls' own clothes plus some from a staff member for Suzuka. The next video, "Iine!", shows them in the same costumes. The third video, ''Headbangeeeeerrrrr!!!!!'', sees them in costumes that are recognizably related to their established look.
* EpicRocking:
** "Ijime, Damé, Zettai" from the SelfTitledAlbum (6:07). It also has the toughest choreography for Yui and Moa. This is why it was usually used as a show-closer prior to ''Metal Resistance''.
** "Road Of Resistance" – 5:17 on the album, but usually [[https://youtu.be/zTEYUFgLveY much longer when performed live]] due to Su's love of call-and-response.
** "THE ONE" from ''Metal Resistance'' (6:29). When paired with its companion song "Tales of the Destinies" (5:35), as on the album and at Tokyo Dome Red Night, the spectacle is over twelve minutes. (The version of "THE ONE" performed at LEGEND S was an eleven-minute epic by itself.)
* ExcitedShowTitle: Excited Song Title!
** Their second song, "Iine!"
** "Headbangeeeeerrrrr!!!!!"
** "Gimme Chocolate!!"
** "YAVA!"
* FourIsDeath: The Black Babymetal song "Song 4", which uses a lot of wordplay surrounding the readings of "4" in Japanese, seems to refute this with a line in the chorus stating that 4 is ''not'' synonymous with death.
* GenreRoulette: Fairly uniquely for a pop-metal band, the actual metal isn't tethered to a specific subgenre. It varies from BlackMetal, to MelodicDeathMetal, to {{Djent}}.
* GirlishPigtails: Moa and Yui wear pigtails and their style is darkly girlish/feminine. Suzuka wore this style until 2012, when she switched to the single high-set ponytail seen in the photo above.
* [[GoodGirlGoneBad Good Girls Gone Bad]]: According to the video shown at the Budokan concerts, Yuimetal and Moametal were corrupted by a trickster sprite to become the greedy girls in "Onedari Daisakusen".
* HeWhoMustNotBeHeard: When the Babybones backing band and the band's producer get on-camera interviews, all they do is mumble and subtitles of what they're actually trying to say are shown.
* HeWhoMustNotBeSeen:
** The musicians during the early years wore skeleton costumes in the music videos and while appearing in public. Except in the "Megitsune" MV, where they wear long black wigs and masks. In reality, they were just faking playing to a backing track.
** Averted in concerts from 2013 onwards - they have a live band wearing white robes and facepaint, composed of members of Japanese metal groups. There's a semi-regular lineup, although members can be swapped out if they have availability issues. Every fan knows who they are, though the members are not allowed to talk about their work with Babymetal (BOH has broken this command at least once to praise the girls).
* HimeCut: When the girls let down their hair, it resembles this style and, given their genre of Heavy Metal, it makes quite the contrast with the trope's usual connotations of tradition and elegance. Suzuka plays it straight (figuratively, given her leadership, and literally too), and she's done so in certain music videos like "Megitsune".
* IAmSong: "Babymetal Death" is an extreme example, since the only lyrics are the group introducing themselves. The word "death" is a [[FunWithHomophones homophone]] of the Japanese ''desu'' which in this context means "I am".
* IconicOutfit:
** Their outfits deriving from the video for "Ijime, Damé, Zettai", featured in the picture to the right. An updated version is used in most live concerts.
** Babybones' skeleton costumes are easily recognizable by the fans.
** Loose white robes & corpsepaint for the Kami Band.
* IdolSinger: All three members were members of the junior Idol group Music/SakuraGakuin, and the band itself started out as one of several clubs (sub-units) within that group. When Suzuka was set to graduate Sakura Gakuin in 2013, Babymetal was spun off into an independent unit[[labelnote:*]] (not unlike how Mini-Pati was absorbed ''into'' Sakura Gakuin when its entire lineup – Raura, Nene, Marina, and Suzuka – became part of S.G.)[[/labelnote]] so that the project could continue with Su as lead singer. They are sometimes still called "Idol Metal" or "Idol fusion metal band" by the media.
* InstrumentOfMurder: Su's microphone in the "Megitsune" music video contains a dagger.
* InTheNameOfTheMoon: They have introduction lines and pose they use during interviews and award ceremonies. For those unfamiliar with the ritual (such as public officials), this may be confusing.
--> (said in turn while holding the fox sign) Su-metal DEATH! Yuimetal DEATH! Moametal DEATH!\\
We are... (posing as shown in the top image) BABYMETAL DEATH!
* ItIsPronouncedTroPAY: Even though the band's official logo is and has always been in English, WordOfGod says the correct pronunciation is its kana rendering – ベビーメタル (beh-BEE-meh-tahl) – to preserve its {{pun}} on "heavy metal". [[https://youtu.be/2oHeqQAD56k?t=1m55s Su was visibly annoyed]] when an interviewer mentioned most people still pronounced it "BAY-bee-MEH-tal". Ironically, the English narrators of the band's interlude videos tend to use the latter. [[{{Hypocrite}} So does Su when speaking in English.]]
* {{Kayfabe}}: Enforced in two ways.
** Since graduating Sakura Gakuin, the girls are ''always'' referred to in print or on video by their stage names. Even when they were still the Heavy Music Club, their stage names would be used when talking about Babymetal. Nobody has interviewed Suzuka Nakamoto since 2013, or Yui Mizuno and Moa Kikuchi since 2015.
** The girls' handlers apparently have a LongList of topics considered off-limits to interviewers, especially non-Japanese ones. This results in the trio never breaking character on camera. Although given the extremely limited range of things that can be asked, there's not a lot of character to break. On the other hand, the girls still usually give genuine answers to most questions they can understand and can answer. (the tell they're not is if they answer "Music/{{Metallica}}" or [[CatchPhrase "Only the Fox-God Knows!"]])
* {{Kitsune}}:
** The main theme of "Megitsune" (literal translation: female fox/vixen). The song itself insists on the distinction: as they explain it, when a woman catches a guy's fancy and she turns them down, men often call her "megitsune". If she turned them down because she wants to lure them in further and is really just playing hard to get, she's the traditional kitsune, who were after all famous for turning into women and seducing men. If she turned them down because she just simply has no interest in them from the start and no means no, she's not seducing them so she's a megitsune.
** As described in AnimalMotif above, ''kitsune'' features prominently in the band's lore and visuals.
* TheLeader: Suzuka, as the oldest girl and lead vocalist. She's also the FaceOfTheBand.
* LighterAndSofter: Than most heavy metal bands. To wit, one of Music/AmonAmarth's songs was about the fated clash to the death between Thor and the World Serpent ("Twilight of the Thunder God"), one of Music/JudasPriest's songs was about the circumstances that lead people into a life of crime ("Breaking the Law"). What is Babymetal's most popular song about? ''Chocolate''.[[note]] Well, one can argue it's actually about body image, as the singer must balance her desire for sweets with concern about gaining weight in a society that values thinness.[[/note]]
* LoudnessWar: Their inaugural album is brickwalled and almost pure clipping from start to finish. This may be an intended effect though, as even the vinyl versions are like this.
** The production of the second album ''Metal Resistance'' is better than the first, although the dynamic range is similar.
** The live albums ''Live at Budokan: Red Night'' and ''Live at Budokan: Black Night'', mastered by Ted Jensen (longtime collaborator with Yoko Kanno), are quite reasonable by modern standards.
* LuckyCharmsTitle:
** ''Doki Doki☆Morning''
** ''Uki Uki ★ Midnight''.
%% * MetalScream: Su in "Headbanger!" which combines it with TitleDrop.
%% Explain the trope.
* MoneySong: "Onedari Daisakusen" ("Begging Strategy") offers practical advice to teens on how to extract extra pocket money from one's father with a well-timed shoulder-massage/flattery combo. Said flattery include praising him for his hard work and ultimately declaring that one ''wants to be her father's bride'' (obviously in a LikeParentLikeSpouse sense, not ParentalIncest). Audiences have been known to make it rain with fake money whenever this song is performed.
* MusicForCourage: "Road of Resistance", made in collaboration with Music/DragonForce's Herman Li and Sam Totman.
--> Our hearts are one.\\
If you believe in your way,\\
go on even the way without a path!
* NeoclassicalPunkZydecoRockabilly: Combines the hardness and energy of heavy metal with the catchiness and appeal of J-pop and an aesthetic taken straight out of Gothic Lolita and VisualKei.
* {{Oni}}: "Catch Me If You Can" is about a hungry ''Oni'' who wants to eat the girls, who spend their time during the song playing hide-and-seek and basically trolling it. [[note]] They're playing the "Tag-extra" version of hide-&-seek; in Japanese, the seeker in both games is called the ''oni''; tag itself is called ''onigokko'' – literally, "game of the Oni".[[/note]]
* {{Producer|s}}: Kobametal, real name Kei Kobayashi. A lifelong metalhead who always covers himself with a skeleton costume for interviews, although plenty of photos of him exist.
* PunctuatedForEmphasis: The title for "Ijime, Damé, Zettai" is written in katakana ''and'' punctuated to invoke this – 「イジメ、ダメ、ゼッタイ」. Rendered in English as "No More. Bullying. Forever."
* PunnyName: The band name plays on the Japanese pronunciations of the words baby (beibi) and heavy (hebii).
* PrettyInMink: Black Babymetal wore what looked like fur-lined coats in the Legend 1997 performance of "Onedari Daisakusen", due to its greed-oriented theme… and also the concert happening four days before Christmas.
* RatedMForManly: The ''inversion'' of this trope is the whole point of this band, by having three cute girls performing aggressive music traditionally associated with masculinity.
%% * RedOniBlueOni: Explicitly mentioned in the lyrics to "Catch Me If You Can".
%% -->''"Aka'oni-san, Ao'oni-san: Suteppu, suteppu (one, two! one, two!)"'' [-{Red Oni, Blue Oni, take your steps. 1, 2! 1, 2!}-]
%% Explain the trope and the example.
* SilkHidingSteel: "Megitsune" explains how women, especially YamatoNadeshiko, are actresses who are adept at hiding their true feelings and should not be underestimated. Literally invoked in the music video, where Su's mic [[InstrumentOfMurder contains a dagger]].
* SongStyleShift:
** "Iine!" has a ''[[TrapMusic Trap]]'' break near the middle complete with hoodies, GratuitousEnglish, and Music/KanyeWest [[http://1.bp.blogspot.com/_txdFVAWpc94/TOKwqIGfagI/AAAAAAAAA4o/JMPJAXyX6xY/s640/kanye_west_daft_punk_stronger_01.jpg sunglasses.]] [[http://www.youtube.com/watch?v=qVdBBOpSoN4&t=1m33s We are completely serious.]] Apparently it's done as a TakeThat to SwagRap.
** "Uki Uki ★ Midnight" has a {{Dubstep}} break, [[http://www.youtube.com/watch?v=W-2Z_kQpdW0&t=1m36s also near the middle.]]
** "Song 4" features a reggae section.
* SpellMyNameWithAnS: "Iine!" faces the same problem as "[[Music/{{Loituma}} Ievan Polkka]]". Three guesses on what that problem is and the first two don't count.
* SureLetsGoWithThat: At the beginning of the group, Koba was trying to teach the girls the [[WardingGestures heavy metal horns]] gesture. They misinterpreted the description and made a 'kitsune sign' instead. The whole Fox God mythology of the group probably stems from this.
* ThatSyncingFeeling: An unusual entry for a group now known for doing nearly everything live. But this wasn't always the case.
** Early live shows were mostly lipsynced, with some live vocals blended in (quite common for idol performances). Later on, Suzuka did more and more live, followed by Yui and Moa. The production of the ''LIVE AT BUDOKAN'' albums (2015) makes it very easy to hear that the backing vocals are confined to a few parts of the Black Babymetal songs – mostly parts with strenuous choreography.
** The [[https://youtu.be/rLVImnMnxc0 very first Juonbu performance from November 2010]] sounds double-tracked – Su is singing live over her own predone vocals a few times.
** Su has a weird tendency to invert this. She has a history of mouthing lyrics even when she ''isn't'' meant to be singing. The full-group dance of "Motteke! Sailor Fuku" from that same 2010 show is a good example, as is her duet with [[Music/JudasPriest Rob Halford]] nearly six years later where she mimed his part of "Breaking The Law".
** Many fans complained that the dubstep remix of "Headbanger" at Legend 1997 was playback. However, it is the ''only'' part of that entire 80-minute concert where Su didn't sing live (not counting death screams), and she sang the song live later that same concert.
** The official videos on the band's Youtube channel using concert footage give off this vibe, as oftentimes the studio track replaces the original live vocals. "Gimme Chocolate!" is a good example, so is "THE ONE".
** Inverted for the Wembley Arena concert. Yui had problems with her microphone throughout the set, so the CD/Video release replaces her live vocals with studio recording. Like all other examples, the fact that Babymetal songs are matched to tight choreography that leaves almost zero room for improvisation makes it much easier to swap out a poor live with a studio stem.
* TitleScream: Happens at the very end of "Headbanger!" And also in the middle right before the bridge.
* TwinTropes: Intentionally invoked with regards to Yuimetal and Moametal. Koba's original vision for Babymetal had always included "Twin Fairies" dancing around the lead singer. This is why their outfits and many of their dance moves are mirrored.
* UncommonTime: Given the group's forays into more esoteric subgenres of metal, this was bound to happen.
** "Tales of the Destinies", the group's stab at Music/DreamTheater-style music, constantly switches time signatures and tempo at the drop of a hat.[[labelnote:*]] To put this in perspective, a sample of the opening in ''Young Guitar'' magazine showed it starts off in 11/8, switches immediately to 6/4 for two measures, then to 4/4 for two measures, then a measure of 3/4, then another measure in 11/8, then two measures of 12/8, a measure in 4/4, and finally a measure in 5/4. Most of the rest of the song is just as nuts, although the parts where Su sings are easier to follow, as is the end.[[/labelnote]] It's such a complicated song that many wondered if it was even ''possible'' to perform it live. They did so at Tokyo Dome Red Night.
** TOTD's companion song, "THE ONE", is mostly in 12/8 (or a fast 4/4), but the bridge mixes it up being mostly in 6/8 with a single fast 4/4 bar thrown in every fourth measure (or 4/8 depending on how you count it). The tempo also subtly changes.
* WidgetSeries: Widget Musicians. Three {{Idol Singer}}s mix pop music with HeavyMetal. It's very weird and very Japanese, and… well, it ''works'', and has gained quite a dedicated following.
* YamatoNadeshiko: Features heavily in the song "Megitsune" (vixen, female fox), which says that girls and women nowadays are forced to reembrace the aspect of this archetype that is about keeping a calm front and going on despite turmoil even though the turmoil here is internal rather than external (or as they put it, "smiling on the outside, crying on the inside").
* ZettaiRyouiki: Grade B when wearing socks. Non-operative now that their costumes employ stockings.