Recurring Guest Characters Johnny Nash 8 guest appearances Marvin Gaye 5 guest appearances James Brown 5 guest appearances Trini López 4 guest appearances Mama Cass Elliot 2 guest appearances Roy Orbison 2 guest appearances Annette Funicello 1 guest appearances Donna Loren 1 guest appearances John Denver 1 guest appearances Prince 1 guest appearances Johnny Cash 1 guest appearances The Association 1 guest appearances