Britain’s Got Talent have announced the guest performances that will feature in the semi-finals this week.

Tonight (29 May), 2009 winners Diversity will give viewers an insight into their upcoming tour, with the cast of the West End revival of We Will Rock You appearing on Tuesday, as well as former X Factor winner James Arthur, last year’s BGT winner, comedian Axel Blake, and in a TV exclusive, the cast of The Wizard of Oz will give a glimpse of the show ahead of their run at the London Palladium.

Then, in Sunday night’s final, the cast of Les Miserables will give a powerhouse performance.

Be sure to tune in, Besties!