The first six undercover celebrity singers -- peacock, hippo, monster, unicorn, deer and lion -- face off against one another in elaborate head-to-toe costumes.
The second six undercover celebrity singers -- rabbit, alien, raven, pineapple, poodle and bee -- face off against one another while wearing elaborate head-to-toe costumes.
Host Nick Cannon and panelists Ken Jeong, Jenny McCarthy, Nicole Scherzinger and Robin Thicke reflect on the show's impact on pop culture; T-Pain makes a special appearance; Season 2's characters are introduced.