Ant and Dec host as the eleventh series of Britain's biggest talent competition reaches its exciting climax. Following a thrilling week of live semi-final shows, the grand final has arrived, featuring make-or-break performances from the remaining handful of talented acts. Judges David Walliams, Alesha Dixon, Amanda Holden and Simon Cowell will offer their opinions on tonight's performances, but it is the voting public who now have the final say in selecting the show's winner. As always, Ant and Dec will be on hand to provide support, either joining in with celebrations or offering a shoulder to cry on as the acts await the results of the final public vote. Which performers have captured the public's hearts this year, and who will eventually be crowned Britain's Got Talent champion 2017?

Ant and Dec host the talent competition's fifth and final semi-final results show. The act with the most public votes will go straight through to the live grand final, while judges Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams decide which of the two runners-up will join them. The show also includes a performance from another big name guest.

Ant and Dec host the talent competition's fifth and final live semi-final show as the remaining group of acts take to the stage. Everyone performing tonight will be hoping to win that life-changing prize of 250,000 pounds and a guaranteed appearance at this year's Royal Variety Performance, but who will win the support of both the voting public and the judging panel?

Ant and Dec host the talent competition's fourth tension-packed results show. The act with the most public votes will go straight through to the live grand final, with judges Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams then deciding which of the two runners-up will join them. The show also includes another big guest performance.

Ant and Dec host the talent competition's fourth live semi-final show as more talented acts take to the stage. Each of tonight's acts is competing for a life-changing prize of 250,000 pounds and a guaranteed appearance at this year's Royal Variety Performance, but which of them will manage to impress both the voting public and the judging panel?

Ant and Dec host the talent competition's third tension-packed results show. The act with the most public votes will automatically go through to the live grand final, with judges Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams deciding which of tonight's two runners-up will join them. The show also includes another performance from a big name guest.

Ant and Dec host the talent competition's third live semi-final show as another group of talented acts take to the stage. Tonight's performers are all competing for the chance of winning a life-changing 250,000 pounds - as well as a guaranteed appearance at this year's Royal Variety Performance - but which of them will manage to impress both the voting public and the judging panel?

Ant and Dec host the talent competition's second tension-packed results show. The act with the most public votes will automatically go through to the live grand final, before judges Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams decide which of tonight's two runners-up will join them. The show includes another performance from a big name guest.

Ant and Dec host the talent competition's second live semi-final show of 2017 as the next group of chosen acts take to the stage. A diverse range of performers will be vying for the chance of winning the life-changing 250,000 pound prize and a spot at this year's Royal Variety Performance, but who will impress the voting public and the judging panel tonight?

Ant and Dec host the talent competition's first tension-packed results show of 2017. The act with the highest public vote will automatically go through to the live grand final, while judges Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams face a tough decision over which of the two runners-up will join them. The show also features a performance from a big name guest.

Ant and Dec host the talent competition's first live semi-final show as the first group of chosen acts take to the stage. Performers young and old, funny and poignant, silly and scary will be vying for the chance of winning the life-changing 250,000 pound prize and a spot at this year's Royal Variety Performance, but who will impress the voting public and the judging panel tonight?

Ant and Dec host the UK's biggest talent competition as judges Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams take their places on the panel for the final round of auditions. The judges then face the difficult task of whittling down this year's crop of talented contestants ready for the live semi-final shows. Which acts will be one step closer to the grand prize of 250,000 pounds and the chance to perform at the Royal Variety Performance 2017?

Ant and Dec host the UK's biggest talent show as it continues its eleventh series. The four formidable judges - Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams - take their seats and offer their insights as they take in the sixth round of weird and wonderful auditions. Which acts will be returning for the semi-finals, taking a step closer to winning 250,000 pounds and the chance to show off their talents at this year's Royal Variety Performance?

Ant and Dec host the UK's biggest talent show as it continues its eleventh series. The four formidable judges - Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams - take their seats and offer their insights as they take in the fifth round of weird and wonderful auditions. Which acts will be returning for the semi-finals, taking a step closer to winning 250,000 pounds and the chance to show off their talents at this year's Royal Variety Performance?

Ant and Dec host the UK's biggest talent show as judges Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams take in the fourth round of weird and wonderful auditions.

In the third episode of the brand new series of Britain's Got Talent, the show's four formidable judges – Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams – take their seat on the judging panel in the search for the most exciting talent around.

They will be joined by the nation's favourite TV duo Ant and Dec – along with their OBEs - who will be on hand to congratulate and commiserate the acts whilst guiding the audiences through the auditions.

In the second episode of the brand new series of Britain's Got Talent, the show's four formidable judges – Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams – take their seat on the judging panel in the search for the most exciting talent around.

Ant and Dec host the eleventh series of Britain's biggest talent competition as judges Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams return for the sixth year running to give their verdicts on more weird and wonderful auditions. As the first round of auditions get under way, which performers will impress the judges and who will be going home disappointed? Only one talented act can claim victory, winning the opportunity to perform at this year's Royal Variety Performance.

Lance Corporal Richard Jones, winner of Britain's Got Talent 2016, stars in this one-off TV special as he performs some morale-boosting and mind-blowing military magic.