Girls Aloud are the Star Guest Announcers as Ant and Dec take over the whole of Television Centre for this two-hour finale. There's a sofa full of celebrity Revengers, with Simon Cowell, Alison Hammond, Rylan and Craig David among those ready to get their own back on Ant and Dec, and the singalong features Tony Hadley, S Club and Kaiser Chiefs. Stephen Mulhern returning for the ultimate decider of Ant v Dec and someone has the chance to Win the Ads and take home the biggest prize pot in the show's history.