panel of celebrity «detectives» -- including Robin Thicke, Nicole Scherzinger, Ken Jeong and Jenny McCarthy — as well as longtime host Nick Cannon, who are all doing their best to figure out what celebs are under the elaborate costumes before they have to unmask.After last week introduced us to the impressive talent and singers from Group B, we're going back to the four remaining hopefuls of Group A — The Bull, The Skunk, The Hamster and The Baby — and we'll be meeting a brand new wildcard