It's that time again! Some of the biggest names in Hollywood stepped out to celebrate Halloween 2013, dressed as film characters, other A-listers, comic superheroes and much more! Check out some stars -- including Hilary Duff, Vanessa Hudgens and John Stamos -- who went the extra mile to get decked out for some of the biggest Halloween parties of the season.
Dressed as the Bride of Frankenstein, Liv Tyler took her son Milo trick or treating in New York City on Oct. 31.
Credit: Bill Davila/startraksphoto.com