Remembered best as the lead singer of the 1970s hard rock band Heavy Metal Kids, Holton also had an acting career, playing the role of Wayne in the 1980s British comedy series Auf Wiedersehen, Pet. At the start of his entertainment career, he performed in productions at the Sadlers Wells Opera Company, the Old Vic Theatre, and the Royal Shakespeare Company. Then, in his late teens, he participated in a touring production of the rock musical Hair.