Crimson-FANG is a collaboration between 相川七瀬 (vocals) and Marty Friedman (guitar). The collaboration was created specifically for the release of the movie "仮面ライダーキバ" (Masked Rider Kiva). The single, "Circle of Life" was used as the theme for the movie and was released in two versionsa 1986 ver. and a 2008 ver., on August 6, 2008. The song "With you" appears on the "2008 ver." single, with the artist credited as Crimson-FANG feat. Read more on Last.fm