There are more bands called Egoist: I. EGOIST is a fictional group featured in the anime series, Guilty Crown. The lead vocalist for the group is Yuzuriha Inori (楪いのり), whose singing voice is by chelly, one of Supercell's newest vocals picked through an audition of over two thousand applicants. Supercell was the composer for Euterpe, the song featured in the anime, as well as both the intro and outro, though the outro was credited under EGOIST instead.

Read more about Egoist on Last.fm.