Credit: Astrid Stawiarz/Getty Images for IMG

These days, Mischa Barton is better known for her bizarre wardrobe than her television career.

So New York Fashion Week attendees did a double take when when The O.C. actress showed up at the Naeem Khan runway show on Thursday in a ladylike white lace dress and chic black Christian Louboutin shoes. She also traded in her messy waist-length hair extensions for a sleek blowout.

Barton, 25, walked in with stylist June Ambrose, and according to New York Magazine's The Cut blog, they had a camera crew in tow for Ambrose's untitled reality show.