Less than three weeks ago, Matt Damon was had his standard short hairdo while promoting the new Bourne movie. The pic above is from July 28th!! But now that he’s promoting The Great Wall, Damon’s man bun–a style he sports in the Chinese war epic–has resurfaced. So how’d he grow his hair out so fast? As Jezebel speculates, he probably didn’t. Back when Damon’s man bun originally appeared, he said it was the result of “like 700 hair extensions.” Either way, it looks horrible.