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.
PHOTOS: The biggest celeb fashion missteps
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.
PHOTOS: Major celebrity meltdowns
"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.
PHOTOS: Last year's most talked-about celeb bodies
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.
Get more Us! Follow us on Twitter, Friend us on Facebook, Subscribe to Us Weekly
Check out Jessica Alba, Reese Witherspoon, and more stars who recycle their wardrobes.
It's been 20 years since "Jurassic Park" came out. See what the cast of the movie is up to these days.
Check out some of January Jones' most retro wardrobe choices from over the years.
Take a look back at Mark Wahlberg's best shirtless looks over the years
From Benji Madden and Cameron Diaz to Mariah Carey and Nick Cannon, take a look at some of Hollywood's strangest couples.
Find out what happened to the stars of 'Garden State' after they made the hit indie film.
From Heidi Klum and Seal to Ryan Sweeting and Kaley Cuoco, see which stars got tattoos for love.
© 2014 Microsoft