* The very idea of BABYMETAL. Extremely adorable idol music mixed with brutal and heavy-as-fuck, face-melting metal.
** The fact that such a thing should have been the textbook definition of OneHitWonder. ItWillNeverCatchOn, people said. Seven years later, the girls are now adults[[labelnote:*]] (in the West; in Japan one doesn't become a legal adult until 20, which Yui and Moa have yet to reach)[[/labelnote]] and the group is still going. In addition to being considered a breath of fresh air by many metal bands in the West, they also managed to kick-start the Underground Idol scene in Japan, with Music/{{Ladybaby}} being the most prominent act to follow in their wake.
* Watch [[http://www.youtube.com/watch?v=2IzR_ClTE8Y this video]]. When the actual headbanging starts at 0:45, you're pretty much guaranteed to burst out laughing.
-->"How does she not crack her head open on that dresser?" --pretty much everyone who watches the video
* Let's just say a first time listener is going to have at least one MoodWhiplash moment, with the only appropriate response as laughter. Regular fans are used to these moments however, embracing it as a part of their sound.
* The hip-hop breakdown in the middle of "Iine!", which is a BigLippedAlligatorMoment even by Babymetal standards. Regrettably, they drop 90% of its lyrics during live shows in favor of call-&-response, though it invariably ends on the wonderfully adorable and {{memetic|mutation}} "Kitsune da o!".
* The song "Gimme Chocolate!!" – literally a paean to metal brutality… and it's about wanting candy.
** Suzuka herself recalled having a "WTF" reaction upon hearing an early cut of the song.
--->'''Su:''' "And I heard it and thought, ''this'' is how we're doing the song?!"
* The dubstep section of "Uki Uki★Midnight" [[spoiler:when one realizes it's a dubstep remix of "Twinkle Twinkle Little Star"]].
* The BLACK BABYMETAL song "GJ!" has a cowbell hit right smack dab in the middle of some of the heaviest riffs the Kami Band does. That the hit is punctuated by one of [=MoiMoi=]'s cutest dance moves only makes it even more hilarious.
* Since at least early 2015 (probably earlier), Moa has had a habit of making funny faces (''hengao'') at other members when she's not facing the camera – something she also did back in her Sakura Gakuin days. Moa is just a natural clown.
** Her original target was Hideki Aoyama, the drummer, who often responds in kind.
** More infamously, she often uses the breakdown during "Megitsune" – when Su is holding the fox mask – to hengao and get Su to [[{{Corpsing}} crack]]. At least twice, fan-cams have caught Su sticking her tongue out in response.
*** Fans of the hengao battles were sad when, at the Hollywood Palladium show, Su opted not to indulge Moa, instead giving her a dismissive stare followed by a quick smirk.
** Moa and Su also had a brief hengao battle during "Gimme Chocolate!!" on ''Colbert''. The cameras were behind Moa, so we have no idea what she did, but Su responded with a puffer-fish face.
* If Moa is unsuccessful at getting Su to react during "Megitsune" (or even if she ''is'' successful), she has since 2016 taken to using a particular segment of "Gimme Chocolate!" where she and Yui point finger-guns at the audience through Su's flexed arms to instead poke Su's cheek, just because she can. Watching Su keep stoic while Moa messes with her is a riot.
* Yui may be the "shy girl" of the trio, but she's also the one who will mug for a fan-cam if an audience member catches her attention. Fans consider getting a reaction from Yui – especially if she pokes her cheek, known as "Puni-Puni Cheek" – to be one of the greatest honours Babymetal can bestow.
** If something happens during a live show where Yui has no idea how to react, she will invariably respond with Jazz-Hands and/or mugging for the nearest camera. This famously happened at the end of Tokyo Dome Black Night where Su trolled Moa with her microphone. As Moa and Su had their laugh, Yui simply mugged.

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