Still looking for the perfect Halloween costume? Trying to figure out how to be topical with your wardrobe choices, but not quite sure how to pull it off? Don't worry. The Internet is here with a million ideas.
From Michele Bachmann's Newsweek cover to Chemistry Cat to Chuck Testa, all of 2011's major Internet stars were in attendance. So between all of the partygoers' awesome ideas, you're sure to find some inspiration.
So browse through our top 21 favorites from Hallowmeme, and if you spot something you don't recognize, look for the link to an explanation beneath each photo. Then be sure to check out the full photosets over at Slacktory and Buzzfeed for even more inspiration.