PHOTOS: Mischa Barton - Hollywood Hipster

Mischa Barton showed off a softer, more voluptuous look as she visited her agent's office in Beverly Hills Thursday, and RadarOnline.com has the pics for you.

The 24-year-old blonde, last seen playing a down-and-out model on Ashton Kutcher's short-lived CW show The Beautiful Life, wore a patterned shirt and navy blue pants while chatting on her cell phone and nursing an iced coffee.

Here’s hoping this summer is brighter for the former O.C. star. Last July, she was checked into Cedars Sinai Medical Center under an involuntarily psychiatric for medical issues. She has a history of substance abuse, racking up a drunk driving arrest and rehab stint the past few years.