A number of guests including Jennifer Lopez and Olly Murs have been confirmed to appear on Britain's Got Talent.

Demi Lovato and Ellie Goulding have also been announced to perform on the programme's live shows.

They're joined by last year's winner - the talented dog Pudsey - who will take to the stage alongside owner Ashleigh.

Britain's Got Talent's five semi-finals will take place from May 27, with the final airing on June 8.

Among the favourites to win this year's competition are singing group Luminites and dancers Attraction.

The winner will walk away with a cool £25,000 and a slot at the Royal Variety Performance.