 Pat O'Day & Associates then "[b]invent the first revolving stage[/b]", being 30 feet in diameter and using electronic motors propelling eight automobile tires, and completing one full revolution every 60 seconds (reversing directions after two revolutions to avoid tangling power cords).The first band to use the new stage was "The Mamas and the Papas".Thanksgiving 1966, the second band was the "Rolling Stones" (pp.