There's never a dull moment during Halloween, and 2013 was no different! Gisele Bündchen and Tom Brady were inspired by The Wizard of Oz, channeling Dorothy and the Cowardly Lion at a private event, and Heidi Klum was almost unrecognizable as an old woman. Meanwhile, Miley Cyrus brought her best Lil' Kim, Demi Lovato wasn't afraid to get a little creepy, and Julianne Hough's Orange Is the New Black costume stirred up quite a bit of controversy. Take a look at all the stars who were out in full-costumed force last year as you start planning for your own look this year!