5. Anything Tilda Swinton Has Ever Worn
This is her Golden Globes look from this year, but really, anything Tilda has ever put on would make a great Halloween costume (and we mean that as a compliment. We love you, Tilda!).
6. Rooney Mara
Dye hair black. Wear sweeping white dress. Kick someone’s ass. Done and done.
Up next: This year’s winner of the People’s Best Dressed list and more!