We don't see too much of Mischa Barton these days, but the former "The O.C." star is certainly still hot. To wit, she popped up yesterday at the Women for Women International Gala in London wearing a revealing gown that showed off ample amounts of her sideboob. We might have to toss this one on our next "100 Hottest Sideboob Photos of All Time" lists

[Egostastic]