The seven remaining singers take to the stage in disguise as Stephen Mulhern joins judges Jonathan Ross, Davina McCall, Rita Ora and Mo Gilligan try to guess the mystery celebrities performing inside the elaborate costumes. It's a double elimination so after the votes are counted two of the famous faces will be unmasked and sent home.

Joel Dommett hosts as the three remaining incognito celebrities compete to be crowned the ultimate champion, with comedian Lee Mack joining panellists Rita Ora, Jonathan Ross, Davina McCall and Mo Gilligan. The identities of all three finalists will be revealed, while all 12 singers reunite for a special group performance and three previous competitors return for a trio of one-of-a-kind duets.