Don't call it a comeback: Nick Cannon unveiled as Bulldog on 'Masked Singer,' returns as host next week Erin Jensen, USA TODAY Replay Video UP NEXT Spoiler alert! The following contains details from the April 7 episode of "The Masked Singer," including the identity of the unmasked celebrity. And we've arrived at "The Masked Singer" Group B finals! But it wasn't just Black Swan, Chameleon, Crab and Piglet fighting to move onto the next round. Another Wildcard, Bulldog, was introduced to shake up the singing competition. And that wasn't the only source of drama. After Crab sang, he overheated in his costume and needed a break to cool off. (More on that below.)