8x31 - The X Factor

Dermot O'Leary reveals the results of the public vote. The two acts left battling for the crown perform what will become the winner's single in front of 10,000 people at Wembley Arena, before they find out who has won this year's competition. Plus there are performances from top international guest stars. With judges Gary Barlow, Kelly Rowland, Tulisa Contostavlos and Louis Walsh.