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 Twitpic

Pickle princess got arrested by a smurf cop @MattyKTalent http://plixi.com/p/54164261less than a minute ago via ÜberTwitter

Photo: Marc Jacobs at The Boom Boom Room #1 http://tumblr.com/xzgo1of5yless than a minute ago via Tumblr

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 iPhone

The best costumes go to Heidi Klum & Seal dressed up as superheroes!! —> http://twitpic.com/32yk6nless than a minute ago via Twitpic

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®