Revo is a Japanese composer, lyricist, vocalist, and multi-instrumentalist best known for founding Sound Horizon in 2001 and later Linked Horizon, the group that wrote the iconic theme songs for Attack on Titan.

Over his career, he's worked with an impressive range of collaborators. He teamed up with composer Yuki Kajiura on "Dream Port," collaborated with Haruka Shimotsuki on "Kiri no Mukou ni Tsunagaru Sekai," and even brought in Marty Friedman (formerly of Megadeth) for a Sound Horizon maxi single called "Ido e Itaru Mori e Itaru Ido." He also produced the opening theme "Moon Pride" for Sailor Moon Crystal alongside the idol group Momoiro Clover Z.