Ant and Dec host the second semi-final as more acts that madeit through the audition rounds perform in front of the judgesand a live audience for a chance of a place in the final.Judges Simon Cowell, Amanda Holden, Alesha Dixon and BrunoTonioli, as well as presenters Ant and Dec, have the power tosend one act straight through to the grand final with thegolden buzzer, before the audience votes for their favouriteact, who will gain the second place.
