Hosted by Nick Cannon, with panelists Ken Jeong, Jenny McCarthy, Nicole Scherzinger and Robin Thicke, “The Masked Singer’' is a top-secret singing competition in which celebrities face off against one another while shrouded from head to toe in an elaborate costume, concealing his or her identity. With each performance, the host, panelists, audience, viewers and even the other contestants are left guessing who is singing behind the mask. The singers may attempt to throw off the crowd, but keen observers might pick up on tiny clues buried throughout the show. Each week, a singer is eliminated -- and then reveals his or her true identity.