Mischa Barton hit the streets of New York City yesterday in a green Juicy Couture lace dress, sexy sandals and a cute fedora to shade her pretty face. Later that day, the former O.C. star and current Keds spokesperson switched into a white lace summer dress and made her way over to Lord & Taylor for a Keds signing event. And what about those fab Grecian-style sandals? Replaced by a comfy pair of, you guessed it, Keds.