Five of the world's greatest tribute acts go head to head in this one-off special hosted by Paddy McGuinness. The five acts pay tribute to music legends Amy Winehouse, Bruno Mars, George Michael, Little Mix and Whitney Houston.

Five of the world's greatest professional tribute acts go head to head in this Christmas special hosted by Paddy McGuinness. The acts pay tribute to music legends Michael Buble, Michael Jackson, John Lennon, Kylie Minogue and Bruce Springsteen.