Dermot O'Leary hosts a star-studded version of the singing contest, with judges Simon Cowell, Nicole Scherzinger and Louis Walsh mentoring the famous faces. The series kicks off at Simon's home in Malibu, where the celebs are split into three categories - Overs, Unders and Groups.

Cast: Dermot O'Leary, Simon Cowell, Nicole Scherzinger, Louis Walsh, Martin Bashir, Eyal Booker, Laura Buitrago, Brendan Cole, Levi Davis, Jeremy Edwards, Victoria Ekanoye, Thom Evans, Ben Foden, Hayley Hasselhoff, Vinnie Jones