Credit: David Livingston/Getty Images

Lindsay Lohan and Tara Reid aren't the only Hollywood bad girls getting an image makeover.

Mischa Barton, who recently turned to stylist June Ambrose for a major style overhaul, stepped out in a head-turning look at the opening of Growze boutique in Los Angeles Tuesday.

The former OC star, 25, donned a black bra under a transparent polka-dot blouse with cropped black leather pants that showed off her slimmed-down shape.

"I've been running like three miles a day," she told Us Weekly of her current fitness regimen, adding that she also loves juice cleanses and vegan food.

To complement her ensemble, Barton opted for a high sleek ponytail and winged-out liner. She added a pop of color to her black-and-beige wedges with an on-trend pastel blue pedicure.