Mischa Barton at the Marc Jacobs Spring 2010 Fashion Show

Mischa Barton looks like she enjoyed herself at the Marc Jacobs Spring 2010 Fashion Show during the Spring 2010 Mercedes-Benz New York Fashion Week in New York City on Sept. 14.

We know Mischa is all about fashion (and now will even play a fashion-obsessed model named Sonja Stone on The CW’s new The Beautiful Life starting Wednesday!)

In this first picture below, Mischa is photographed with fashion/style writer Derek Blasberg, who has written for Vogue and is a contributing editor for style.com, among other publications.

Here is one of Blasberg’s tweets during the fashion show that mentions Mischa:

Doesn’t Mischa look great? I love her sexy black dress with the lacy sleeves and the little white polka dot pearls.

Images: Newscom