"Mighty Bruins" is a fight song of University of California, Los Angeles sports teams. Composed by Academy Award-winning composer Bill Conti (with lyrics from UCLA students Barbara Lamb and Don Holley), the song was commissioned by the UCLA Alumni Association on its fiftieth anniversary. It debuted in 1984 at the football game against Stanford University, with the school marching band conducted by Conti himself.
UCLA uses the song as its "victory march"; it is usually played whenever the team scores. As with UCLA's other fight song, Bruin Warriors, the Mighty Bruins prominently features the UCLA Eight Clap cheer.