Britain’s Got Talent has assembled members of the casts from three it musicals tonight: Les Miserables, Phantom of the Opera and Mary Poppins.


Zizi Strallen was joined by Charlie Stemp to perform "Step In Time" from Mary Poppins. 

Killian Donnelly and Holly-Anne Hull from The Phantom of the Opera sailed onto the BGT set in the Phantom's boat singing "The Phantom of the Opera"; and, finally, Michael Ball, John Owen-Jones, Matt Lucas, Carrie Hope Fletcher, Rob Houchen, Shan Ako, Amara Okereke and Katy Secombe from the Les Miserables the Staged Concert performed "One Show More".