John Barrowman makes the nation's performing dreams come true. Veterinary nurse Dionne Martin performs a heart-warming duet with Ronan Keating, Jodie Prenger surprises young super-fan Abigail Peters with a special rendition of Somewhere Over the Rainbow, and the fire-fighters take on the bingo workers for a place in the Workplace Wonders semi-final. The West End cast of La Cage Aux Folles spring a hilarious surprise on an unsuspecting audience member, and John takes on a mystery guest in his most dangerous stage fright challenge yet: Fire!

• Zac Efron
• Enrique Iglesias
• Michael Ball