Watch Preview Clips of What's Coming Up on Britain's Got Talent This Week.

Who knew David Walliams could be such a diva? Simon Cowell reads out David Walliams demands!

Henry Gallagher has a crush, and like any self-respecting singer-songwriter, he's penned a song about it. Move over Taylor Swift!

A boyband who don't sing! What?!

Britain's Got Talent is back on our screens this Saturday !TV 8pm