Marc Feld (September 30, 1947 – September 16, 1977), better known as Marc Bolan, was a singer and songwriter for the band Tyrannosaurus Rex and later T. Rex, from 1967 until his death in a car crash in 1977. He is credited by many as having invented glam rock.

Before forming T. Rex he was a member of the flower children/mod band John's Children.