Mischa Barton Partying Again

Public humiliation and the cancellation of her show weren't enough to keep the British-American party girl at home.

Mischa Barton is back, bellied up at the bar. Witnesses spotted her out on New York's Lower East Side Wednesday night, buying rounds for her latest chase and trying to pretend life is normal.

Sadly, that's hardly the case. Just last month Mischa, 23, was hospitalized for what's still being speculated as an admission due to a drug problem-slash-mental breakdown-slash, um, bad wisdom teeth? Right. It was one of those. But it was reported she was devastated when The Beautiful Life was canceled last month, clearly because Mischa's private life is such a public oxymoron to the show's premise.

Details on Wednesday night? She was at the Randolph lounge on Broome Street buying a round of shots for Young Veins' lead singer, 23-year-old Ryan Ross (formerly of Panic! at the Disco). Mischa, go home! Your image needs more soaking time to unstain!

But for weeks she's been insisting that she feels better. She's looking better too -- check out her knockout public appearance in late September.