Channing Tatum was Winnie the Pooh

Kim Kardashian was Kim Kardashian

View this post on Instagram

Still fits…

A post shared by Kim Kardashian West (@kimkardashian) on Oct 31, 2015 at 10:28pm PDT

Jessica Alba and friend went as Romy and Michelle

View this post on Instagram

#romyandmichelle #halloween @kellysawyer n I invented post-its

A post shared by Jessica Alba (@jessicaalba) on Oct 30, 2015 at 9:59pm PDT

Kylie was a warrior princess

View this post on Instagram

my ninjas

A post shared by Kylie ✨ (@kyliejenner) on Oct 31, 2015 at 11:04pm PDT

Heidi Klum was Jessica Rabbit (yes, that’s really her)

View this post on Instagram

#heidiHalloween Such a fun night 💋

A post shared by Heidi Klum (@heidiklum) on Nov 1, 2015 at 1:37am PST

Taylor Swift was Olaf from ‘Frozen’

Gigi Hadid was Sandra Dee

View this post on Instagram

TELL ME ABOUT IT, STUD. 🕶⚡️ (@jennifer_yepez @monicarosestyle & @erinparsonsmakeup are the real MVPs)

A post shared by Gigi Hadid (@gigihadid) on Nov 1, 2015 at 6:32am PST

Andy Cohen was a John Mayer fan

View this post on Instagram

GAME CHANGER!!!l @johnmayer KILLED with #DeadAndCompany at MSG!

A post shared by Andy Cohen (@bravoandy) on Oct 31, 2015 at 9:23pm PDT

Nikki Minaj was a princess

View this post on Instagram

A post shared by Barbie (@nickiminaj) on Oct 31, 2015 at 5:41pm PDT

(I’m actually not sure if Justin Bieber is in a costume or not but here he is)

View this post on Instagram

Family time

A post shared by Justin Bieber (@justinbieber) on Oct 31, 2015 at 12:27pm PDT

Kourtney Kardashian and her kids went as superheroes

View this post on Instagram

Superheroes. ⚡️🎯🕷⭐️

A post shared by Kourtney Kardashian (@kourtneykardash) on Oct 31, 2015 at 6:02pm PDT

Gwen Stefani was a murdered cowgirl

View this post on Instagram

Hi Halloween gx 🎃

A post shared by Gwen Stefani (@gwenstefani) on Oct 30, 2015 at 10:42pm PDT

Julianne Hough went as Alabama

View this post on Instagram

Alabama ❤️ Clarence #TrueRomance #favoritemovie

A post shared by Julianne Hough (@juleshough) on Oct 30, 2015 at 9:32pm PDT

Ariana Grande went as Hamlet?

View this post on Instagram

AND SINCE I AM DEAD I CAN TAKE OFF MY HEAD TO RECITE SHAKESPEAREAN QUOTATIONS ~ ✨So much fun w/ my babes at @iHeartRadio @HondaStage last night! #iHeartAriana photo by @wes_alex

A post shared by Ariana Grande (@arianagrande) on Oct 31, 2015 at 12:42pm PDT

Nina Dobrev went as Posh Spice

View this post on Instagram

Spice Up Your Life ! #SpiceGirls 👻 #halloween2015🎃

A post shared by Nina Dobrev (@nina) on Oct 26, 2015 at 7:22pm PDT

Neil Patrick Harris and family went as Star Wars

View this post on Instagram

A long time ago in a Halloween far, far away….

A post shared by Neil Patrick Harris (@nph) on Oct 31, 2015 at 1:54pm PDT

Miley Cyrus went as a tooth

Tyra Banks went as Richard Branson

View this post on Instagram

Which one is @richardbranson and which one is @tyrabanks??? Happy Halloween!

A post shared by Tyra Banks (@tyrabanks) on Oct 30, 2015 at 10:55am PDT