video was first released on July 10, where it was exclusively shown on the Space Shower program Jet until July 18, before being released to other music video networks. The video was uploaded to YouTube on July 10, and as of August 2015 has amassed more than 14 million views. Reception Critical reception CDJournal reviewers gave the single their star of approval, calling it the "highest [level of] pop music" and a future anthem for Sakanaction. They praised the "radical but considered electro sound" and the "dancable" four on the floor beat, also describing the Latin percussion was "fresh". The reviewers felt that the song's melody was so high quality that it would sound good even backed with just a guitar. They praised Yamaguchi's "unique" lyrical sense, as well as Yamaguchi's vocals at the start of the chorus as he sang the word dōshite, feeling it was "intense". Yuichi Hirayama of Excite described the song as "a radical pop tune that rides on tribal dance beats, while questioning the nature of identity", while Sumire Hanatsuka of Skream! similarly felt that the song blended a Latin rhythm with the "spirits of a Japanese festival". Tetsuo Hiraga of Hot Express described the song as "a flood of sound, an emotional explosion, a pleasurable Latin beat, and a melody and lyrics that make you want to scream.", also praising the song's high impact, feeling that it would resonate well even with casual music listeners. Commercial reception The single debuted at number 12 on Oricon's physical singles chart, selling 12,000 copies. Rival sales tracking agency SoundScan Japan found that the vast majority of copies sold in the first week were of the single's limited CD/DVD edition. After spending a total of eight weeks in the top 200 singles, "Identity" managed to sell a total of 21,000 copies. Track listings Personnel Personnel details were sourced from Documentalys liner notes booklet. Music video personnel details were sourced from Sakanarchive 2007—2011: Sakanaction Music Video Collection.SakanactionAll members – arrangement, production Keiichi Ejima – drums Motoharu Iwadera – guitar Ami Kusakari – bass guitar Emi Okazaki – keyboards Ichiro Yamaguchi – vocals, guitar, lyrics, compositionPersonnelMinoru Iwabuchi – executive producer (Victor Entertainment) Hayato Kumaki – manager Kensuke Maeda – assistant engineer for Alive Recording Studio Satoshi Tajima – executive producer (Hip Land Music Corporation) Masashi Uramoto – mixing, recording Naoki Yokota – executive producer (Victor Entertainment)Music video personnel' Takeshi Hanzawa