"Heart's on Fire" is a song by American rock singer John Cafferty. It was released in February 1986 as a single from the soundtrack to the 1985 film Rocky IV. The power ballad peaked at number 76 on the Billboard Hot 100 chart. It was written by Vince DiCola, Ed Fruge, and Joe Esposito.
Nancy Ehrlich of Billboard magazine reviewed called the song "high-adrenaline rock'n'roll over pummeling percussion."