| On/Off | |
| Background: | group_or_band |
| Origin: | Japan |
| Genre: | J-pop |
| Years Active: | 2007-2015 |
| Label: | Music Ray'n Inc., DefStar Records |
On/Off (stylized as ON/OFF) is a Japanese musical duo consisting of twin brothers and . The duo debuted in 2007 releasing the single .
On/Off debuted on November 21, 2007 with, which was used as the ending theme song the live-action adaptation of Fūma no Kojirō; they were also a part of its cast. The single debuted at number 59 on the Oricon charts.[1] Following the release of "Eien no Setsuna" was their second single on June 4, 2008. The single achieved more success than their debut single charting at number 19 on the charts.[2] "Futatsu no Kodō to Akai Tsumi" was used as the opening theme song for the first season of anime series Vampire Knight. The duo released two singles, (October 2008) that became the opening of the second season anime of Vampire Knight and (March 2009), before releasing their debut album on April 22, 2009. The former charted at number 18 on the charts and was used as the opening for the second season of Vampire Knight; while the latter failed to chart on the Top 30.[3] [4] Their single "Butterfly" was also used in the anime Durarara!! as the ending theme song.[5] Their new single "Hajimaru no wa, Sayonara" was used as second opening for anime series Beelzebub and was composed and produced by popular J-pop artist Daisuke Asakura. On February 11, 2011 they released their new single 'Akatsuki' and on December 7, 2011 they released their new album 'Legend of Twins II : Zoku Futago Densetsu'.[6]
In 2015, On/Off broke-up with Naoya and Kazuya pivoting to other careers.[7]
| Year | Album details | Chart positions |
|---|---|---|
| JP [8] | ||
| 2009 | Legend of Twins I: Futago Densetsu | |
| 2011 | Legend of Twins II: Legendary Twins Continues'
|
| Year | Title | Chart peak | |
|---|---|---|---|
| 2007 | "Eien no Setsuna" release date - 21st Nov 2007 | ||
| 2008 | "Futatsu no Kodō to Akai Tsumi" release date - 4 June 2008 | ||
| "Rinne: Rondo" release date - 15th Oct 2008 | |||
| 2009 | "Hana Kagari" release date - 4 March 2009 | ||
| 2010 | "Butterfly" release date - 9 June 2010 | 15 | |
| 2011 | "Hajimaru no wa, Sayonara" release date - 27 April 2011 | 31 |