"If Looks Could Kill" is the name of a song recorded by rock band Heart. It was released as the fifth and final single from the band's self-titled 1985 album Heart. Musically the song is similar to early Heart tunes, as it is an aggressive, hard rock number. Lyrically, Ann Wilson sings to a cheating lover, letting him know that "if looks could kill / you'd be lying on the floor".
After four top-ten U.S. singles (including the number-one "These Dreams") from the Heart album, "If Looks Could Kill" stalled at number fifty-four on the Billboard Hot 100. The band would rebound the following year with Bad Animals, and their most successful single yet ("Alone").