King Gnu (fka Srv.Vinci)

King Gnu is a Japanese band formed in 2013. It consists of Daiki Tsuneta (vocalist and guitarist), Satoru Iguchi (vocalist and keyboardist), Kazuki Arai (bassist) and Yu Seki (drummer). The band's main songwriter is Daiki Tsuneta, who also performs as part of the creative collective Millennium Parade. In 2013, Mrs.Vinci was formed, later going by Srv.Vinci. Their first song was "ABUKU(泡)" released under the creative label Perimetron. In 2017, they renamed themselves to King Gnu. They then performed at the Fuji Rock Festival in 2017 and 2018. On October 25, 2017, the band released their first album under the name King Gnu, Tokyo Rendez-Vous. The track "Vinyl" was used in a Persol Tempstaff advertisement released on January 25 the next year. In January 2019, the band released Sympa, their first release under a major label after signing to Ariola Japan. The following month, King Gnu released hit song "Hakujitsu", which ranked No.4 in the year-end chart of Billboard Japan Hot 100. In October, they released "Kasa" and achieved their first No.1 on the Billboard Japan Download Chart. On December 31, King Gnu performed "Hakujitsu" at the 70th NHK Kōhaku Uta Gassen, their debut performance on the program. Their third album Ceremony, released on January 15, 2020, was a commercial success, peaking atop the Japanese Oricon albums chart, the Billboard Japan albums chart, and was one of the 10 best-selling albums of 2020 worldwide by selling over one million copies. A nationwide tour for the album was scheduled but all performances were postponed due to the COVID-19 pandemic. The band held their first online live concert in August. On September 8, it was announced that King Gnu would be the first Japanese artist to sign a partnership agreement with Red Bull. In August 2021, it was announced that King Gnu would perform the opening theme song "Boy" for the anime adaptation of Ranking of Kings; the song was released in October. In December, MAPPA released a few movie trailers promoting the Jujutsu Kaisen 0 anime film adaptation, which King Gnu have made 2 new songs for the film. The songs are "Ichizu" (一途; "The Only Way") and "Sakayume" (逆夢; "Contradictory Dream"), which are the opening and ending themes for the Jujutsu Kaisen movie. The two songs were released together as Ichizu/Sakayume. In March 2022, they released "Chameleon" (カメレオン, Kamereon), which is the theme for Japanese television drama Don't Call It Mystery, adapted from the manga of the same name. In November 2022, they played one of the biggest concerts of their career, performed in two days concerts with attended more than 100,000 fans at Tokyo Dome. King Gnu held their biggest tour ever in Japan "Closing Ceremony" on May and June 2023, which saw them play at stadiums five years after their debut for the first time in Nagai Stadium and Yokohama Nissan Stadium. They released "Specialz" as the opening theme for the Shibuya Incident Arc, the second part of the second season of the Jujutsu Kaisen anime on September 1. In March 2025, it was announced that King Gnu would perform the ending theme for Detective Conan: One-eyed Flashback, "Twilight!!!". In September 2025, King Gnu released the song "So Bad", created as the exclusive official theme for Universal Studios Japan’s Zombie de Dance: Halloween Horror Nights event. On January 9, 2026, King Gnu released their single "Aizo", to serve as the opening theme for Jujutsu Kaisen's Culling Game Arc. Srv.Vinciが改名を発表、第一弾楽曲公開。7月にはアルバムも. April 27, 2017. "King Gnu来年1月にメジャーデビューアルバム発売、初の全国ツアーも決定". Kaga, Ryuichi (April 14, 2020). "Interview with Ghost In The Shell: SAC_2045 Opening Artist Daiki Tsuneta of millennium parade". OTAQUEST. Archived from the original on May 5, 2020. Retrieved May 4, 2020. Srv.Vinciが改名を発表、第一弾楽曲公開。7月にはアルバムも [Srv.Vinci announces name change and releases first song. Album coming in July]. Barks (in Japanese). April 27, 2017. Retrieved September 22, 2023. 2年連続出演を勝ち取った注目のルーキー、King Gnu登場！. June 15, 2018. King Gnuの「Vinyl」がCMソングに、監督「“トレスポ”並みの衝撃」 [King Gnu's "Vinyl" to be used as CM song, director says, "It's as shocking as 'Trespo'"]. Barks (in Japanese). January 25, 2018. Retrieved September 22, 2023. "Billboard Japan Hot 100 of the Year 2019 Top 10". Billboard. 2019/10/21 付け. 【紅白】King Gnu井口、堂々歌唱も「櫻井くんのKing＆Gnu言い間違いでめちゃくちゃ緊張した」 [[Kohaku] King Gnu Iguchi sings confidently, "I was really nervous because Sakurai-kun misspoke as King & Gnu"]. Oricon News. December 31, 2019. Retrieved September 22, 2023. Brandle, Lars (March 11, 2021). "BTS Bag 'Unprecedented' 1–2 on IFPI's Global Album Sales Chart For 2020". Billboard. Retrieved May 18, 2021. King Gnu全国ツアー「CEREMONY」全公演の開催見合わせ [All performances of King Gnu's national tour "CEREMONY" have been postponed]. Music Natalie (in Japanese). April 10, 2020. Retrieved September 22, 2023. 【ライブレポート】King Gnu、気迫のパフォーマンスで魅せた初オンラインライブ（写真27枚） [[Live Report] King Gnu's first online live show with a spirited performance (27 photos)]. Music Natalie (in Japanese). August 30, 2020. Retrieved September 22, 2023. King Gnu、レッドブルと日本人アーティスト初パートナーシップ（写真21枚 / 動画あり） [King Gnu, first Japanese artist's partnership with Red Bull (21 photos / video included)]. Music Natalie (in Japanese). Retrieved September 22, 2023. King Gnuの“優しく愛らしい”新曲が「王様ランキング」OPテーマに決定（コメントあり） [King Gnu’s "gentle and adorable" new song has been selected as the opening theme for “King Ranking” (with comments)]. Music Natalie (in Japanese). Retrieved September 22, 2023. Loo, Egan (September 22, 2023). "Ranking of Kings Anime's 1st Full Video Unveils More Cast, Opening Song". Anime News Network. Retrieved September 22, 2023. "King Gnu、アニメ「呪術廻戦」第2期オープニングテーマ担当（コメントあり）". Music Natalie (in Japanese). Natasha Inc. Retrieved August 5, 2023. Mateo, Alex (August 3, 2023). "King Gnu Perform New Opening Theme Song for Jujutsu Kaisen Season 2 Anime's 'Shibuya Incident' Arc". Anime News Network. Archived from the original on August 3, 2023. Retrieved August 3, 2023. "Detective Conan: One-Eyed Flashback:First collaboration with King Gnu for theme song, latest trailer released | MANTANWEB（まんたんウェブ）". en.mantan-web.jp. March 15, 2025. Retrieved March 14, 2025. "Oricon Albums Chart" (in Japanese). Oricon. Retrieved March 24, 2019. "Billboard Japan Hot Albums: Ceremony (2020/1/27)". Billboard Japan (in Japanese). Retrieved January 22, 2020. "Billboard Japan Hot Albums: The Greatest Unknown (2023/12/11)". Billboard Japan (in Japanese). Retrieved December 6, 2023. "週間 アルバムランキング (2019年01月28日付)". Oricon. Archived from the original on January 23, 2019. "Japanese album certifications – King Gnu – Tokyo Rendez-Vous" (in Japanese). Recording Industry Association of Japan. Select 2024年2月 on the drop-down menu "月間 アルバムランキング (2019年01月度)". Oricon. Archived from the original on February 13, 2019. Brandle, Lars (March 11, 2021). "BTS Top IFPI's Global Album Sales Chart for 2020". Billboard. Retrieved March 22, 2021. 週間 CDアルバムランキング 2020年01月27日付 [Weekly CD Album Ranking on January 27, 2020] (in Japanese). Oricon. Retrieved January 22, 2020. 【ビルボード2020年年間Download Albums】米津玄師『STRAY SHEEP』が制す. Billboard Japan (in Japanese). December 4, 2020. Retrieved May 16, 2021. "Japanese album certifications – King Gnu – Ceremony" (in Japanese). Recording Industry Association of Japan. Select 2020年12月 on the drop-down menu オリコン週間 アルバムランキング 2023年11月27日～2023年12月03日 [Oricon Weekly Album Ranking November 27, 2023 – December 3, 2023] (in Japanese). Oricon. Archived from the original on December 6, 2023. Retrieved December 7, 2023. "Japanese album certifications – King Gnu – The Greatest Unknown" (in Japanese). Recording Industry Association of Japan. Select 2023年12月 on the drop-down menu King Gnuのシングル作品 (in Japanese). Oricon. Retrieved February 18, 2026. "Billboard Japan Hot 100 Chart". Billboard Japan (in Japanese). Retrieved March 24, 2019. "Flash!!!". April 13, 2020. "Prayer X". August 20, 2018. "Hakujitsu". January 20, 2020. "Hikoutei". August 10, 2019. "Kasa". October 21, 2019. "Sanmonshousetsu and Senryouyakusha".