Sir Elton John and David Walliams have given Simon Cowell a cheeky surprise while on holiday in St Tropez - by baring their behinds.
Simon's Britain's Got Talent co-star David and Your Song singer Sir Elton mooned the TV and music mogul as their luxury boats passed each other on the French Riviera, the Sun reports.
Funnyman David - who was holidaying with model wife Lara Stone - apparently shouted across to Simon: "I've got something for you" before flashing his derriere, with Sir Elton said to have followed suit.
David apparently then called out: "Love you Simon" before blowing the X Factor boss a kiss.
The Little Britain star tweeted afterwards: "I just mooned Simon Cowell. From a boat. That is true. And then someone a million times more well known than me mooned Simon Cowell too."