Casting:
Wolfman-Jack, Helen-Reddy, Donna-Summer, Gladys-Knight, Tina-Turner, Olivia-Newton-John, KC--The-Sunshine-Band, Paul-Williams, Gladys-Knight--The-Pips, The-Spinners, Leo-Sayer, Curtis-Mayfield, The-Bee-Gees, Electric-Light-Orchestra, Randy-Jones, David-Bowie, Billy-Preston