Ant and Dec return with a fresh search for the nation's brightest new star, and there's a new addition to the judges' desk in the form of the golden buzzer, which gives Simon Cowell, David Walliams, Amanda Holden and Alesha Dixon the power to send an act straight through to the live semi-finals regardless of their fellow panellists' opinions. However, they can each press it only once during the series. Leaving no stone unturned, the auditions visit London, Cardiff, Manchester, Birmingham and, for the first time, Belfast, as a wide variety of acts, from comedians to contortionists, singers to spoon players, compete for the chance to win £250,000 and a slot at this year's Royal Variety Performance.

The annual search for a star continues as more auditionees try to win over Simon Cowell, David Walliams, Amanda Holden and Alesha Dixon with their talents. The acts all have their eyes on the prize of £250,000 and a slot at this year's Royal Variety Performance, but first they must secure a place in the live semi-finals. Will any of them be good enough for the judges' new golden buzzers, like last week's dancing duo Paddy and Nico? Ant and Dec host.

The third set of hopefuls audition in front of the judges hoping to impress and gain a place in the next round of the competition.

Ant and Dec present the fourth audition show, as the judges - Simon Cowell, David Walliams, Amanda Holden and Alesha Dixon - give their verdicts on more of the nation's best, and worst, performers. Queuing up to take the stage, acts of all ages and abilities are determined to prove they're worthy of the £250,000 cash prize and a slot at this year's Royal Variety Performance, but while some of them will be deserving, the dream will be over for those whose auditions are cut short by the panel.

The fifth set of hopefuls audition in front of the judges hoping to impress and gain a place in the next round of the competition. Amongst those hoping to impress are Simon Cowell, Emotions, Operaetcetera, Tai Bill, The Addict Initiative, Arnaud, Mehdi & Yanis Marshall, Jon Clegg, Rafi Raja, Janice Pearson and Bars & Melody.

The sixth set of hopefuls audition in front of the judges hoping to impress and gain a place in the next round of the competition.

The seventh set of hopefuls audition in front of the judges hoping to impress and gain a place in the next round of the competition.

The first set of semi finalists attempt to impress the judges and viewers at home. After each act has performed the judges give their verdict on what they have seen.

Ant and Dec are back with the results from tonight's public vote.

The second set of semi finalists attempt to impress the judges and viewers at home. After each act has performed the judges give their verdict on what they have seen.

Ant and Dec are back with the results from tonight's public vote.

The third set of semi finalists attempt to impress the judges and viewers at home. After each act has performed the judges give their verdict on what they have seen.

Ant and Dec are back with the results from tonight's public vote.

The fourth set of semi finalists attempt to impress the judges and viewers at home. After each act has performed the judges give their verdict on what they have seen.

Ant and Dec are back with the results from tonight's public vote.

The fifth set of semi finalists attempt to impress the judges and viewers at home. After each act has performed the judges give their verdict on what they have seen. Paddy & Nico, Jack Pack and Bailey receive the best comments from the judges.

Ant and Dec are back with the results from tonight's public vote. Attraction and Richard & Adam perform live on stage. Paddy & Nico, Jack Pack and Bailey learn that they are are in the top three. Ant and Dec then reveal that Jack Pack have topped the public vote. The judges then decide to put Paddy & Nico through.

The finalists return to perform live one last time. The judges give their verdicts after each act performs.