It's Halloween in Hollywood! See All the Costumes the Stars Have Worn So Far

as Willie Nelson, on Instagram.

as the Headless Horseman, at a neighborhood block party.

as Sally and Jack Skellington from The Nightmare Before Christmas, on Instagram.

as a Spider Witch, on Instagram.

as Bonnie and Clyde, in Los Angeles on Oct. 31.

as Pretty in Pink's Andie and Ducky, on Instagram.

as Carmen Miranda and Groucho Marx, on Instagram.

as Peter Pan and Tinkerbell, on Instagram.

as vampires, on Instagram.

wears a wig, portrays a doctor and turns into a tiger, respectively, on Instagram.

as Teen Titan's Starfire, on Instagram.

as Tupac and Jada Pinkett Smith (left), on Twitter.

as Russian nesting dolls, on Instagram.

as a cop, on Instagram.

as Edward Scissorhands, on Instagram.

as Selena, on Twitter.

as superheroes and villains, on Twitter.

as a Game of Thrones character, on Instagram.

as Shaft, on Instagram.

as Ted, on Instagram.

as Chucky and Tiffany Valentine, on Instagram.

as a unicorn, on Instagram Stories.

as a character from Westworld, on Instagram.

as Aladdin, Jasmine and Apu from Aladdin, on Instagram.

as Ariel from The Little Memaid, on Instagram.

as Chicago cops, on Instagram.

on Instagram.

as a pea, Mr. Potatohead, court jester and basketball player, respectively, on Instagram.

as a cat, with kids Camden, Jaxon and Saylor Cutler, on Instagram.

as soldiers, on Instagram.

as the gang from The Wizard of Oz, on Instagram.

as a family of skeletons, on Instagram.

as Raggedy Ann, on Instagram.

as Willie Nelson, Waylon Jennings, Belle from Beauty and the Beast and Cowboy Ace on Instagram.

as Maleficent, a biker and a zombie, on Instagram.

as a devil and angel, on Instagram.

as a unicorn, a baby unicorn, a mouse and Mindcraft, on Instagram.

as the werewolf in Michael Jackson's "Thriller" music video, at her 18th Annual Halloween Party at Moxy in New York City.

as Edie Sedgwick at Heidi Klum's 18th Annual Halloween Party at Moxy in New York City.

as a firefighter and, um, Ice T at Heidi Klum's 18th Annual Halloween Party at Moxy in New York City.

as a zombie at Heidi Klum's 18th Annual Halloween Party at Moxy in New York City.

as a day of the dead skelton at Heidi Klum's 18th Annual Halloween Party at Moxy in New York City.

as the Black Cat and Spider-Man, on Instagram.

as avocado toast, on Instagram.

as a deer and hunter, on Instagram.

as the Mother of Dragons Daenerys Targaryen and Khal Drogo from Game of Thrones, on Instagram.

as Buzz Lightyear, Woody and Jessie from Toy Story, on Instagram.

on Instagram.

as Catwoman at the State of the World Tour crew Halloween party, on Instagram.

as Pennywise from It, on Instagram.

both as Wonder Woman, on Live with Kelly and Ryan.

spoofing America's Got Talent in their third costume change, on Access Hollywood Live.

as Bette Davis, on Instagram.

spoofing Game of Thrones in their second costume change, on Access Hollywood Live.

as a skeleton and Deadpool, on Instagram.

as Wayne's World's Wayne Campbell and Garth Algar, at Bette Midler's 2017 Hulaween event.

as an '80s-era aerobics instructor, at her gym, Cut Fitness.

as Poseidon and Marie Antoinette, at the actress's 2017 Hulaween event.

go '70s and feline chic, at Bette Midler's 2017 Hulaween party.

as Milli Vanilli, on Twitter.

as Eleven and Mike from Stranger Things, on Instagram. (See much, much more from them here!)

as the "Burtka-Harris Halloween Carnival of Curiosities," on Instagram.

as Rick James, on Instagram.

as an expectant Karla Kardashian, on The Ellen DeGeneres Show.

as Dolly Parton, Billy Ray Cyrus, Miley Cyrus, Willie Nelson, Shania Twain and Blake Shelton, on Today.

as Wonder Woman, on Good Morning America.

as Spider-Man, on Good Morning America.

as Thor, on Good Morning America.