You can't spell OC without Mischa Barton. But you can kill off her character. Here, the wispy Barton makes waves in ruffles at a dinner for designer Jenni Kayne at L.A.'s Curve boutique Friday, the closing day of Los Angeles Fashion Week.

Alongside Mischa is her boyfriend, Cisco Adler. Asked why in the world he is dating Mischa Barton, Adler replied that Rachel Bilson is not available. Just kidding. No way that happened. Nevertheless, this picture confirms one of T.H. Gossip's age-old theories:

Mischa Barton is really thin.