The thighs is one reason she needs to walk the dogs.
But I guess she wouldn't really need to dress up to walk to dogs so that explains her unflattering style here.
Mischa Barton and musician Joel Madden attend In Touch Weekly's ICONS + IDOLS CELEBRATION with performances by Good Charlotte, Leona Lewis and The Veronicas and music provided by Samantha Ronson at Chateau Marmont on September 7, 2008 in Hollywood, California.