Tatakae! Shichinin Rider is an insert song from Kamen Rider Stronger. It was performed by Ichiro Mizuki, Mitsuko Horie. * Lyrics: Saburou Yatsude * Music: Kikuchi Shunsuke * Vocals: Ichirou Mizuki, Mitsuko Horie Tatakae! Shichinin Rider (戦え！７人ライダー Tatakae! Shichi-nin Raidā, lit. "Fight! 7 Riders") is the battle theme of the Seven Legendary Kamen Riders during Stronger's tenure as an active Rider. It is later remixed in Kamen Rider × Kamen Rider Fourze & OOO: Movie War Mega Max, which is played during the first appearance of the Seven Legendary Riders in the film.