John Barrowman presents the first of a new series combining show-stopping acts, wish-fulfillment, celebrity and once-in a lifetime performances, in an unmissable package of glitzy entertainment.

Award-winning mezzo-soprano Katherine Jenkins and McFly feature in tonight's opener, unsuspecting members of the studio audience are surprised and a mystery celebrity challenges John in a "Stagefright" competition. It's fast-paced, funny and often emotional as people who least expect it find themselves centre-stage and in the spotlight, being kept very much on their showbiz toes.

Workers from vastly different occupations challenge each other in Workplace Wonders, and tonight it's the turn of accountants versus waitresses. The cast of West End musical Hairspray take to the stage with one conspicuous addition to their ranks and, ever the consummate entertainer, John performs with the Tonight's The Night dancers in production numbers.