Halloween is today, but that didn't stop celebrities from dressing up and hitting some spooky festivities over the weekend.
From Kim Kardashian's Poison Ivy outfit and Lea Michele's "Black Swan"-inspired costume to Gwen Stefani's royal garb and Heidi Klum's, uh, muscular look, celebrities certainly didn't hold back this Halloween.
Check out the photos below and let us know which costume you like the best!
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