Prepping for what's sure to be a fun-filled weekend, Rachel Bilson was spotted out looking for the perfect Halloween costume in Burbank, CA on Friday (October 29). The former "OC" star strolled past the always-present paparazzi as she made her way into Halloween Town to pick up her ensemble which included a cane. As for Miss Bilson's Halloween costume plans, the darling actress opted not to keep it a secret by dishing her plans to InStyle. She told, “I’m going as my ultimate hero, Miss Piggy, whom I’ve loved practically my whole life. I’m already gathering details, like the perfect w...