Steppenwolf, fronted by singer John Kay, was a favorite of Bill Graham, the mercurial producer who brought Fillmore East to New York’s East Village in 1968. The band’s success with hits like “Born to Be Wild” and “Magic Carpet Ride” quickly won them headliner status.

Before Steppenwolf formed, singer John Kay and guitarist Mars Bonfire were members of the Sparrows. Canadian-born Dennis McCrohan first changed his name to Dennis Edmonton and later to Mars Bonfire. The Sparrows broke up in 1967, leaving Bonfire time to drive into the mountains and deserts of Los Angeles in his used Ford Falcon.