According to Arena Magazine, Mischa Barton's career is in full swing, but I haven't seen her in anything since she left The O.C., so I'm not entirely sure what they're smoking. They also say she's a "good girl gone bad," but I don't quite get that either. When was she a good girl? Anyway, you can kinda see the tiniest bit of Mischa Barton's nipple in this photoshoot, where Mischa Barton is opening her shirt and exposing her breast. So there's that.
Click on the censored image to investigate for yourself.