The concept of using Halloween and costume parties as an excuse to dress a little sexy, play with gender norms, or otherwise go all out with feeling a fantasy? It's nothing new. Fashion crowds, club kids, and celebrities have had a bit of naughty fun with the costume parties for decades. Want proof? Take a trip back in time. First, we've resurface W exclusive pictures of an artsy 1975 costume ball that drew the likes of Jerry Hall and Halston. Then jump a head a few years to the very NSFW Halloween bashes at the infamous Studio 54. Then, a selection of some of the best celebrity costumes from the '70, '80, '90 and '00s including Naomi Campbell, Brooke Shields, Cher, Drew Barrymore, and Chloë Sevigny. Along the way, meet plenty of drag queens, Playboy bunnies, hunky Tarzans, chic Cleopatras and plenty of other characters that are sure to rev up some inspiration for your costume this year.