We're used to seeing NYC's finest DJs, designers, and editors dressed to impress. But, what happens when you take off the mascara and put on a mask? Take off the blush and smear on some fake blood? Remove the cape coat and, well, swap it for a superhero cape? You've got a hilarious flip book of the Big Apple's top tastemakers undone and then all dolled up again. Yes, though they may be hard to recognize, we took a trip down memory lane with in-the-know New Yorkers to bring you 18 costume ideas to copy at your own spook-day event.