"Jeepster" is a 1971 single by the British glam rock band T. Rex. The track and its B-side, "Life's a Gas", are taken from the group's second album Electric Warrior.
The song peaked at No. 2 in the UK charts, and was controversial in that Fly Records released the song without singer Marc Bolan's prior permission, Bolan having just left Fly for EMI, which had given him control of his own label, T. Rex Wax Co. Records.
The music and rhythm are similar to that of the Howlin' Wolf song "You'll Be Mine", written by Willie Dixon. In interviews, Marc Bolan has acknowledged that he "lifted it from a Howlin' Wolf song". "Jeepster" has also similarities with Roy Orbison's song "You're My Baby".