Britain's Got Talent: Live 4

SINOPSE

After thousands applied and hundreds auditioned, the search has reached the live semi-final. The final 40 acts perform, in the hope of impressing the judges, as well as winning the all-important public vote. Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams, joined by the nations favourite presenting duo, Ant and Dec, welcomes eight acts to the stage to perform for a chance of winning a life changing £250,000 and a spot at 2019's Royal Variety Performance.