George Clooney has asked Matt Damon to be his best man.
The 53-year-old star proposed to his girlfriend Amal Alamuddin last month and although rumours had suggested he was planning to ask Brad Pitt to be his best man, it's now been revealed that he's chosen his The Monuments Men co-star instead.
A source told The Sun newspaper: "A lot of people thought Brad was a certainty to be George's best man as they have been such good friends for years. But he is probably even closer to Matt.
"Besides many years ago, during one drunken night together, George made a promise to Matt that he would make him his best man if he ever got married - so Matt called to claim his prize."
However, as 50-year-old Pitt worked with Damon, 43, and Clooney on Ocean's Eleven and it's sequels, it's thought that the hunk will be there to support both of his pals.