"Killer-tune" (キラーチューン, Kirāchūn) is a song by Japanese rock band Tokyo Jihen, led by musician Ringo Sheena. It was released as the band's fifth single on August 22, 2007, as one of the two singles before the band's third album Variety (2007). The song was written by the band's pianist Ichiyo Izawa, with lyrics by Sheena.