Dermot O'Leary hosts the star-studded version of the singing contest, in which the line-up of famous faces leave their comfort zones and take to the stage to perform - and while some have proved to be naturals, others have struggled somewhat. Simon Cowell mentors the Groups, Nicole Scherzinger is in charge of the Overs, and Louis Walsh handles the Unders, and as usual the judges are each allowed to send one act through to next week by pushing the golden buzzer, leaving the rest at the mercy of the voting public.

It's The X Factor: Celebrity Final, where the remaining celebrities take to the stage in the hope of impressing the audience at home and the panel of judges one last time. Over the past seven weeks we've seen stars from the worlds of music, film, sport, television and social media come together to compete to win a life-changing recording contract. This series we've seen Simon mentoring the Groups, Louis the Unders and Nicole the Overs, with host Dermot O'Leary overseeing proceedings and keeping the judges in check along the way. Only one act can ultimately be crowned our champion, but who will it be?