Powerpuff Girls/Regular Show: Karaoke Video


 * Mordecai as Himself
 * Rigby as Himself
 * Benson as Himself
 * Skips as Himself
 * Pops as Himself
 * Muscle Man as Himself
 * High Five Ghost as Himself
 * Brick as Carrey O'Key
 * Boomer and Butch as Carl