Gabrielle Union, Kylie Jenner, Ashley Graham And More Celebs Slay Halloween With Spooky Costumes

It's spooky season! Tons of celebs like Demi Lovato, Jessica Biel, Justin Timberlake, Gabrielle Union and more have been stepping out in some seriously spooky Halloween costumes. From Kate Beckinsale in a "Breakfast at Tiffany's" look to Kylie Jenner's baby Stormi channeling her famous mama at the Met Gala, these stars have seriously won Halloween!