"Get It On" is a song by the English rock band T. Rex, featured on their 1971 album Electric Warrior. Written by frontman Marc Bolan, "Get It On" was the second chart-topper for T. Rex on the UK Singles Chart. In the United States, it was retitled "Bang a Gong (Get It On)" to avoid confusion with a song of the same name by the group Chase.

T. Rex were an English rock band, formed in 1967 by singer-songwriter and guitarist Marc Bolan, who was their leader, frontman and only consistent member. Though initially associated with the psychedelic folk genre, Bolan began to change the band's style towards electric rock in 1969, and shortened their name to T. Rex the following year. This development culminated in 1970 with their first hit single "Ride a White Swan", and the group soon became pioneers of the glam rock movement.