The slimmed-down actress heads out in L.A. Plus: Orlando & Kate, Mischa Barton, Jessica Simpson and more

FEMALE BONDING

On the day she announced her split from Brandon Davis, her boyfriend of more than a year, Mischa Barton (right) indulges in some retail therapy in West Hollywood with her O.C. costar Rachel Bilson and her look-alike little sister Hania.