Today in Tweet Beat, check out what Ice-T, Snooki, Marc Jacobs and more wore on Halloween.

Halloween PIc: Every mad doctor needs his nurse... http://twitpic.com/330eiiless than a minute ago via TwitpicCelebs Post Photos Of Their Halloween CostumesICE T
FINALLEVEL

Pickle princess got arrested by a smurf cop @MattyKTalent http://plixi.com/p/54164261less than a minute ago via ÜberTwitterCelebs Post Photos Of Their Halloween CostumesNicole Polizzi
Sn00ki

Photo: Marc Jacobs at The Boom Boom Room #1 http://tumblr.com/xzgo1of5yless than a minute ago via TumblrCelebs Post Photos Of Their Halloween CostumesTerry Richardson
Terry_World

In case you missed it! :) http://plixi.com/p/54370267less than a minute ago via ÜberTwitterCelebs Post Photos Of Their Halloween Costumeslisa rinna
lisarinna

I did enjoy being Marie-Antoinette last tonight. Also, I got to keep my head. http://yfrog.com/n5vu2gjless than a minute ago via Twitter for iPhoneCelebs Post Photos Of Their Halloween Costumesrose mcgowan
rosemcgowan

The best costumes go to Heidi Klum & Seal dressed up as superheroes!! —> http://twitpic.com/32yk6nless than a minute ago via TwitpicCelebs Post Photos Of Their Halloween CostumesJay Manuel
MrJayManuel

Now that halloween is officially over-Im allowed to get excited about my new "Merry Christmas ll you"! Available tommorow,Nov.2nd!less than a minute ago via Twitter for BlackBerry®Celebs Post Photos Of Their Halloween CostumesMariah Carey
MariahCarey