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[[caption-width-right:350:Luka, Rin, Len and Miku... [[LoadsAndLoadsOfCharacters we couldn't fit them all in if we tried.]][[note]]And, trust us, we ''did''.[[/note]]]]

Vocaloids (from "vocal" and "android") are music synthesizing programs based on real human voice samples and technology created by the Yamaha Corporation. Think SyntheticVoiceActor meets AutoTune. There are currently [[LoadsAndLoadsOfCharacters 56]] vocaloids (Rin and Len count as one product instead of two, as do anon & kanon and ZOLA PROJECT); and fans have created personalities for each character based on official art (some [[HeWhoMustNotBeSeen have no official art]]) and voice. Fans have also created characters based on official releases, such as Neru Akita and Haku Yowane.

To use a Vocaloid, one simply has to type in the lyrics of the song of their choosing as well as the melody for said song, although a great deal of fine-tuning is usually necessary to have the result sound natural. Vocaloids have become so popular that an official unofficial manga adaptation, ''HatsuneMix'', was created, telling the trials and tribulations of the Crypton-produced Vocaloid family: Meiko, Kaito, Miku Hatsune, Rin and Len Kagamine, and Luka Megurine.

''Vocaloid'' took major steps to becoming SeriousBusiness[[note]]On the Internet, anyway. Even with it extending into the real world, Vocaloid is still a niche thing, even to Japanese who identify as {{Otaku}}, with several of them not even knowing there are more Vocaloids than Miku Hatsune[[/note]]. Flagship character Miku Hatsune has become a fully-fledged VirtualCelebrity, with an album featuring her work (composed by synthesizer band ''Supercell'') nearly topping the Japanese music charts at No.2, and Miku herself putting on a ''live concert'' at Animelo Summer Live 2009. (Her "live" performances involve the same tech used for the {{Music/Gorillaz}}' live shows and the [[TupacShakur 2Pac]] hologram from spring 2012.)

Toyota also began an ad campaign for their 2011-model Corolla, [[CharacterCelebrityEndorsement starring]] [[http://www.youtube.com/watch?v=E15PE7iGT0U Miku herself]]; it was subsequently revealed that Toyota sponsored Miku's first overseas appearance -- a live concert in Los Angeles at Anime Expo 2011.

In the 2010 Concert, Rin, Len, and Luka made debuts with [[http://www.youtube.com/watch?v=CS-mPtF7yDY&feature=related even better renderings]]. In addition, the Vocaloid song "Music/BlackRockShooter" (which features said character, created by artist huke) has inspired an official [[Anime/BlackRockShooter anime OVA of the same name]], which was produced by animation studio Ordet (ex members of KyotoAnimation) and was released on 2010. Another popular song, "Kokoro" seems to be getting its own ''[[http://rin-kokoro.com/ musical]]''. "Daughter of Evil", in turn, got its own theater play and later a manga. "Cantarella" got a musical, too. The song "Kagerou Days" and other songs related to it collectively dubbed "KagerouProject" also experienced a burst of popularity, enough to get a serialized manga and a novel written by the song's own producer, culminating in plans to produce an anime adaptation.

Miku had yet another overseas concert in Singapore during the [[http://www.animefestival.asia/hatsune_miku.html Anime Festival Asia 2011]] on November 11, 2011. In addition, during 2012's Miku Party concert, Kaito and Meiko made appearances. Starting May 6th, 2014 and going through June 3rd, Miku will be opening for Music/LadyGaga [[http://www.animenewsnetwork.com/interest/2014-04-16/hatsune-miku-to-open-for-lady-gaga as a part of her [=ArtRave=] tour]], performing at no less than 16 different venues.

The producers {{Cosmo}}, {{Deco27}}, Music/PutinP, and Music/{{mothy}} have their own pages, as does the band {{supercell}}, the music-video-making software MikuMikuDance and Creator/{{SEGA}}'s LicensedGame VideoGame/HatsuneMikuProjectDIVA.

'''Note: The following is only for tropes related to official Vocaloid material. For tropes on songs, fanon, and other fan works, go [[FanWorks/{{Vocaloid}} here]].'''

!!Provides examples of:
* AllLowercaseLetters: anon and kanon.
* AlwaysIdenticalTwins: anon and kanon. Len and Rin can count as this depending on the content.
* AdaptationExpansion: The accompanying adaptations of the songs (especially if they are in a series or ConceptAlbum
* AscendedFanboy: In a way. Popular Nico Nico Douga singer Piko now has his own Vocaloid, Utatane Piko, courtesy of Sony Music, besides being a professional singer himself.
* AscendedMeme: Teto Kasane, Akita Neru, and Haku Yowane. Originally just minor memes concerning experiences within Vocaloid fandom (Haku being the result of a failed Miku experience, Neru being born from anow online argument) they have since become officially recognized by Crypton (although they don't have voices).
* AmericanKirbyIsHardcore:
** The homepage for the [[http://notanotheranime.blogspot.com/2011/05/hatsune-miku-commercial-debut-toyota.html Miku Corolla advertising campaign]]. It seems like whoever drew her doesn't like certain ideas of cuteness... Toyota changed her appearance later, perhaps bowing to pressure from disappointed fans.
** Crypton's [[http://piapro.jp/static/?view=sf_japantown Piapro]] website held a contest for an official "American" Hatsune Miku design, and declared a [[http://exiled-artist.deviantart.com/gallery/#/d41incp winner]] (made by [[http://exiled-artist.deviantart.com Exiled Artist]]). The contest runners indicated it would be used "in a commercial basis or in projects related to Miku's next concert"; it was eventually used in the March 9, 2012 39's Giving Day concert when she performed ''[=PoPiPo=]''.
%% * AnimatedActors
* AnthropomorphicPersonification[=/=]MoeAnthropomorphism: One of the main reasons why Vocaloids are so popular.
* BreakoutCharacter: Miku Hatsune; she was only the seventh Vocaloid ever released, and yet she gained the most popularity among the fandom. These days, you can see a significant amount of fans who know more about Miku than any other Vocaloid, and sometimes learn about the franchise from her.
* TheCameo: Miku's first anime appearance was one of these in ''SayonaraZetsubouSensei'', as one of the people auditioning to be Meru's voice. Rin, Len, Kaito, and Meiko also appear in the same episode briefly, waiting in line for the auditions, however [[LawyerFriendlyCameo their coloring is off.]]
* CatGirl:
** [=SeeU,=] the Korean Vocaloid from the V3 series, has cat ears on her headset.
** Iroha Nekomura. She has a HelloKitty design, with a big cat helmet and little cat-eared speakers, among other things. Her surname even means "Cat Village".
* ColorCodedCharacters: Many of the earlier Japanese Vocaloids had one dominant, unique color associated with them ([[color:red:Meiko]], [[color:blue:Kaito]], [[color:turquoise:Miku]], [[color:orange:Rin]]/[[color:yellow:Len]], [[color:pink:Luka]], [[color:purple:Gakupo]], [[color:green:Gumi]]); with the influx of new Vocaloids, this concept has largely been abandoned.
* ColorCodedStones: Aoki Lapis is named for the Lapis Lazuli Gemstone and has a color scheme of blue and purple.
* CoverVersion: [[ToMakeALongStoryShort If the song you're thinking of exists, they've probably covered it.]]
* {{Crossover}}: Thanks to HajimeKatoki, Miku is now also avalaible in [[VideoGame/VirtualOn Fei-Yen]] cosplay outfit, and Fei-Yen in a Miku Hatsune ShoutOut version.
* CurtainsMatchTheWindow: Several Vocaloids have this going on; namely Kaito, Miku, Sonika, Miki, Kiyoteru and Ryuto.
* TheCutie: [[http://www.youtube.com/watch?v=8SvhxTr96eo Aoki Lapis]], the V3 "Whisperloid."
* DetachedSleeves: All of the V2 Cryptonloids have these, the same with most if not ''all'' their derivatives.
* DigitalPiracyIsEvil: MAIKA lists this as one reason why [[https://www.youtube.com/watch?v=z_oj_KzpRho she'll quit singing.]]
* FollowTheLeader: The [=UTAUloids=], the MACNE series, the Voiceroids, and the [=CeVIO=] Creative Studio due to hardware incompatibility with certain operating systems (as is the case for ALYS), and some general criticisms about certain voices.
* GenreRoulette: They've toyed with damn near every genre of music known to man, the only genres they HAVEN'T toyed with would be [[DoomMetal Drone Metal, Stoner Metal,]] and FunkMetal.
* IdiotHair: IA, Miki, and Piko all have one. Piko's is especially notable in that [[http://images1.wikia.nocookie.net/__cb20110427080453/vocaloid/images/4/46/Illu_Vocaloid_Utatane_Piko-bust.png it's even shaped like a P]] to reflect his name.
* KaleidoscopeHair: Sonika.
* KatanasAreJustBetter: Gakupo Kamui. His katana is even said to be ''somehow related to his musical ability''.
* KayfabeMusic: At live concerts, the band is real enough, but the lead "singer" is a projected image (and not really a singer at all).
* MulticoloredHair: Galaco on her left side.
* LeftHandedMirror: Len and Rin Kagamine, opposite-gender mirrors of each other or HalfIdenticalTwins (depending on who you ask). This trope is most evident in Fanon works involving these two, as their official characterizations are virtually nonexistent.
* LiteralSplitPersonality: Len and Rin Kagamine, according to WordOfGod. When asked whether they were meant to be siblings or lovers, their creator answered that they are neither, they're the same person split into two bodies.
* LoadsAndLoadsOfCharacters: There's quite a few already and the number is only growing. And that's not even getting into the fanmades and genderbends. Note that this number increases ''exponentially''. In 2010, the number of Japanese Vocaloids could be counted on both hands, and the number total were still easy to keep track of and to recite without issue. By the time 2012 arrived, the number had almost tripled.
* LoadsAndLoadsOfLoading: The PSP version of Project DIVA games are plagued with this, not surprising since most UMD-based PSP games have long loading times. Especially if you have the [=DLC=]s installed, as it needs to check the license everytime the list of DLC items are loaded.
* LyricalDissonance: Some of the nightmare fuel songs like "The path to eternal happiness I found it" can be misleading.
* MeaningfulName: Most official and fan characters. For example, the 'Hatsu' of Hatsune (Miku's surname) means first; she was the first Japanese Vocaloid2 character and first of Crypton's "Character Vocal Series". The 'Kagami' part of Kagamine (Rin and Len's surname) means 'mirror'; Crypton once described them as mirror images instead of being twins, although they [[FlipFlopOfGod backtracked]] on that. The 'Meguri' of Megurine (Luka's surname) means circulating/revolving; a reference to her bilingual capabilities. Furthermore, the 'ne' at the end of Kagamine, Hatsune, and Megurine means 'sound'. Akita Neru means 'I'm tired; going to sleep' and Haku Yowane means 'weak-willed words'. In fact, the name "Akita Neru" was coined ''because'' of the troll who created her using the phrase ''akita, neru'' ('I give up; going to sleep'), as a reaction of frustration about the difficulty of using the VOCALOID software.
** Lily's voicebank was sampled from the singer Yuri Masuda. "Yuri" means "lily" in Japanese and similarly, Gakupo, voiced by Gackt (pronounced Gakuto) and Gumi, voiced by Me''gumi'' Nakajima. Utatane Piko, voiced by Nico singer [[ExactlyWhatItSaysOnTheTin Piko]].
* MultinationalTeam: A group of over 45 vocal banks, all with vocals from across the globe. So far, there are English, Spanish, Japanese, Chinese, Korean, Taiwanese, and many more, with some being able to be used on two languages.
* OneMarioLimit: A visual variant. Any other character with big twintails of a similar color will be confused with Miku.
* OppositesThemeNaming: Rin and Len Kagamine. Their names are a pun on the words "right" and "left", respectively.
* PhenotypeStereotype: Sweet Ann and Oliver, according to their box art. Len and Rin are a subversion, as they are Japanese.
* RapunzelHair: Miku, and to a lesser extent Luka, Galaco, Nekomura Iroha, Mew, Haku and Neru. Fanartists tend to draw it ''even longer'', to the point of it being longer than the character is tall.
** With the addition of Vocaloid3 IA and her very long hair, which is comparable to Miku, it goes down to her ankles.
* RidiculouslyHumanRobots: So human, in fact, that you'll soon forget that they're robots.
** Especially the V2 Appends and most of the Vocaloid-3's.
** Except in the cases of Piko and Miki; both have robotic joints and the former has what appears to be an equalizer ''as part of his left eye.'' Oh, not to mention the tail-like [=USB=] cable.
* SiblingYinYang: Between Len and Rin.
** This is somewhat emphasized in the Append artwork; Rin's outfit is mainly light with some darker elements, while Len's is mainly dark with some lighter elements. And the [[http://weekly.ascii.jp/elem/000/000/029/29482/1_cs1e1_x584.jpg boxart.]]
* ThemeNaming: A good number of the Japanese Vocaloids have the character 'ne' (sound) in their surnames, such as Miku, Len and Rin, and Luka.
* ThemeTwinNaming: Rin and Len are puns on "R" (right) and "L" (left). Ultimately played with, as official descriptions state that they're not exactly twins.
** anon and kanon are a straighter example though.
* TheVoiceless: In Project Diva F, DLC characters Yowane Haku, Akita Neru, and Kasane Teto are not given voices when in the interactive mode. They do sing, however, which is odd. Curiously enough, Haku and Neru, who were adopted as "official" characters by Crypton, do not actually have official voices, which leads to Miku and Rin users downpitching the vocals to give them some semblance of a vocal identity.
* VocalDissonance: Vocaloid2 library Nekomura Iroha and Vocaloid4 library CYBER DIVA.
* WolverinePublicity: Miku is something of an internet sensation, and a lot of people would like her to feature in their own properties, not just as a virtual voice actor but as herself-- even a minimal role will do, as long as they get to display her prominently in their advertising. An example of this would be ''Videogame/SeventhDragon'' 2020, where she appears as Hatsune Miku Type-2020.
* YouGottaHaveBlueHair: Kaito, Gakupo, Miku, Luka, Gumi, Sonika, Miki, Iroha and Gachapoid's [[MoeAnthropomorphism human form]].
* ZettaiRyouiki: Hatsune Miku and, subsequently, many other female (and sometimes male) Vocaloids.