Cheeky Robbie Williams found he had really Come Undone as he performed on stage with Take That - when his trousers split.
The singer was performing his solo slot on the reunited group's tour in Cardiff when disaster struck and his costume proved not to be Strong enough.
Williams told the sell-out crowd at the city's Millennium Stadium: "I'm so excited, I split my kecks."
TV screens on the stage then focused on the split, which occurred during his opening number Let Me Entertain You.
Williams - who has played to hundreds of thousands of fans with the group since kicking off the tour last month - asked the cheering fans to post videos of his crotch on his website.
And he talked of abandoning his slot after the mishap, but decided to carry on singing with his tattered trousers. But then he pulled them off completely after he finished singing his breakthrough solo song Angels.
Williams recently revealed he has testosterone injections because he has low levels of the hormone.
The chart star returned with a fresh pair of trousers when he and the group joined forces to perform number one single The Flood during the show.
Witness Natalie Murray, 32, a Take That fan from Barry, south Wales, said: "No one might have noticed at first, but Robbie seemed to want to make a big deal of it. After all these years he still wants to be the centre of attention - he wasn't embarrassed at all."
Meanwhile, Williams revealed on his website that he prepares himself for hitting the stage by thinking of the words of a US "new age" spiritual philosopher Marianne Williamson. It concludes with the line: "As we are liberated from our own fear, our presence automatically liberates others."