Mischa Barton has stripped off for her riskiest photo shoot yet as she poses topless for Nylon magazine. In an interview with the August edition of Nylon, Mischa speaks of her embarrassment following her arrest for driving under the influence in December. In a series of provocative shots for the publication, the former O.C. star poses without her bra as she smoulders with Bridget Bardot-style smoky eye shadow and messy, layered hair.