<P> On / Off debuted on November 21 , 2007 with `` Eien no Setsuna '' ( 永遠 の 刹那 , `` Eternal Bond '' ) , 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 . Following the release of `` Eien no Setsuna '' was their second single `` Futatsu no Kodō to Akai Tsumi '' ( ふたつ の 鼓動 と 赤い 罪 , `` Two Beats and a Red Sin '' ) on June 4 , 2008 . The single achieved more success than their debut single charting at number 19 on the charts . `` 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 , `` Rinne : Rondo '' ( 輪廻 - ロンド - , `` Cycle : Rondo '' ) ( October 2008 ) that became the opening of the second season anime of Vampire Knight and `` Hana Kagari '' ( 花 篝 - ハナカガリ - , `` Hanakagari : Bamboo Flower '' ) ( March 2009 ) , before releasing their debut album Legend of Twins I : Futago Densetsu ( Legend of Twins I - 双子 伝説 - , Legend of Twins I : The Legend Twins ) 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 . Their single `` Butterfly '' was also used in the anime Durarara ! ! as the ending theme song . Their new singles `` 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 2 / 11 / 11 they release their new single ' Akatsuki ' and on 7 / 12 / 11 is the release of their new album ' Legend of Twins II : Zoku Futago Densetsu ' </P>
<P> On / Off debuted on November 21 , 2007 with `` Eien no Setsuna '' ( 永遠 の 刹那 , `` Eternal Bond '' ) , 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 . Following the release of `` Eien no Setsuna '' was their second single `` Futatsu no Kodō to Akai Tsumi '' ( ふたつ の 鼓動 と 赤い 罪 , `` Two Beats and a Red Sin '' ) on June 4 , 2008 . The single achieved more success than their debut single charting at number 19 on the charts . `` 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 , `` Rinne : Rondo '' ( 輪廻 - ロンド - , `` Cycle : Rondo '' ) ( October 2008 ) that became the opening of the second season anime of Vampire Knight and `` Hana Kagari '' ( 花 篝 - ハナカガリ - , `` Hanakagari : Bamboo Flower '' ) ( March 2009 ) , before releasing their debut album Legend of Twins I : Futago Densetsu ( Legend of Twins I - 双子 伝説 - , Legend of Twins I : The Legend Twins ) 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 . Their single `` Butterfly '' was also used in the anime Durarara ! ! as the ending theme song . Their new singles `` 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 2 / 11 / 11 they release their new single ' Akatsuki ' and on 7 / 12 / 11 is the release of their new album ' Legend of Twins II : Zoku Futago Densetsu ' </P>
who sings the theme song for vampire knight
who sings the theme song for vampire knight
On / Off
On / Off