Halloween 2013, basically a month-long event, is finally over. And what a finale it had! Heidi Klum dressed up as "old," Eva Chen got a fake tattoo and amazingly realistic mohawk, and Rihanna wore ... something. Some folks took the obvious route (Perez Hilton went as ... actually, we won't even tell you), while others were straight-up unrecognizable (Melissa McCarthy and Sandra Bullock went as matching bearded fishermen). Enjoy the best, worst, and most wonderful costumes of 2013 in our Halloween slideshow.