Michael Ball, Graham Norton and Prince Edward attended the event at the Phoenix Theatre
Gary Barlow was in London last night for the first opening gala of his new musical The Girls.
He was joined by his writing partner Tim Firth and a host of stars including Phillip Schofield, Graham Norton, Mel Giedroyc, Ore Oduba and Michael Ball.
Prince Edward, Duke of Kent was also at the event, joined by Sophie, Countess of Wessex.
Barlow and Firth were at the 17th Annual WhatsOnStage Awards on Sunday evening, accepting the award for Best Regional Production for The Girls following a run in Leeds last year.
Click here to buy tickets for The Girls
The Girls is booking at the Phoenix Theatre until 22 April.