The same day as young Hania Barton reportedly overdosed on drugs, her troubled, skinny older sister Mischa Barton called Ryan Seacrest's KIIS-FM radio show to talk about her DUI arrest last month for the first time.

"I got a DUI when I was back in L.A.," she said of the December 27 incident.

B!tch, we know.

"I was pulled over. Obviously, I am 100 percent responsible for my actions," Mischa added. "And I am really disappointed in myself over this. I am not perfect, and I don't ever intend to do something that stupid again."

Mischa Barton, 21, the former star of The OC acknowledged she doesn't have a valid license: "I usually try not to get behind the wheel."

"It's tough when people talk about you all the time," she told Seacrest. "You just have to roll with it. I feel like I've got my head on my shoulders pretty good."

We'll, that's probably a debate for another time. Whatever. Anyway, follow this link to peep the sexy Mischa Barton mug shot taken after the DUI.