According to our sources (erm, the Biz column in Friday's edition of The Sun), U2, The Sugarbabes and Stella McCartney were all spotted backstage.
The Sun also carried a picture of Kylie and Danni Minogue sitting alongside the designer Matthew Williamson.
But who's that fourth person in the picture? Why is this suave young gentleman not named? Is it because The Sun decided to respect his privacy?
Is it because he is so famous he does not need to be identified? Or is it because it's only Mother's Stef Calcraft and no-one outside the ad industry has ever heard of him? Yes, that will be it.