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Here is our roundup gallery of celebrities out and about this year in their Halloween costumes. From Heidi Klum in her dead body oufit to the Today crew dressing up as The Royal Family for the Royal Wedding to Gwen Stefani as Cinderella, this was a banner year for Halloween!

PHOTOS: Celebrities Dress Up For Halloween & Share Pics On Twitter

They ran the gamut from sexy to scary to hilarious. Which celebrity do you think had the best Halloween costume? Share your thoughts in the comments below!

PHOTOS: 48 Cats & Dogs Dressed Up In Halloween Costumes

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Check out all of our 2011 Halloween coverage…

PHOTOS: Nick Lachey & Kelly Ripa In Halloween Costumes As Kim Kardashian & Kris Humphries On The Day They File For Divorce

Matthew Morrison Hosts A Star-Studden Halloween Bash [PHOTOS]

Courtney Stodden Dresses Sexy For Halloween, Husband Doug Hutcherson In Costume As His Wife [PHOTOS]

Celebrity Halloween Costumes From Years Gone By

Kate Hudson’s Halloween Bash Attended By Gwen Stefani, Nicole Richie, Jessica Alba & Many More Celebs! [PHOTOS]

Coco Sexes Things Up At The Halloween ‘Player’s Ball’

Heidi Klum Dresses As A Dead Body

JWoww Is All Suckers And Cleavage At Chateau Party [PHOTOS]