Adele broke her social media silence to share a photo of her glamorous Halloween costume, while Gwyneth Paltrow also won rave reviews for her "Seven"-inspired costume of her head in a box.
Kim Kardashian channeled a variety of music icons -- Madonna, Cher, Aaliyah -- almost perfectly, giving sister Kylie a run for her money one year after she won Halloween with her Christina Aguilera costume. Sister Kourtney joined Kim as Michael Jackson the night she dressed as Madonna.
Other stars who rocked Halloween were Rita Ora, Paris Hilton, Karlie Kloss, Diplo, Busy Philipps and more.
See the best 2017 celebrity Halloween costumes below:
Celebrities' Halloween costumes 2017
Celebrities' Halloween costumes 2017
Ariel Winter attended Matthew Morrison's 8th Annual Halloween party presented by PAC SUN and Podwall Entertainment at The h.wood Group's Poppy over the weekend.
(Credit: Vivien Best)
Willie & Waylon #Halloween2017
Happy Halloween https://t.co/rwEwQWwLyw
Lost rehearsal footage of Milli Vanilli #HappyHalloween https://t.co/TCa2RymZYP
#Halloween #HAUS Edward Scissorhands 🖤✂️ https://t.co/FvHHVenDYd
Happy Halloween! #copacabana
Happy Halloween everyone!! - KU https://t.co/1I6T0tQnFm
Halloween 2017 🎃
Spidey's girl 🕷🐾🖤
HAPPY HALLOWEEN from #FeliciaHardy, The Black Cat xx 🎃
Sonny & Cher #HalloWKKWeen https://t.co/nXStzZnrTs
Happy Early Halloween & Happy Birthday Gorgeous ❤️
Academy Awards 1991
LOS ANGELES, CA - OCTOBER 27: Amal Clooney, Rande Gerber and Cindy Crawford attend Casamigos Halloween Party on October 27, 2017 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images for Casamigos Tequila)
Don’t tell me it’s a Fancy dress Party! Poison Ivy came out early this year! P.s performing in this wasn’t that easy! Lol #anywhere #kisshousepartylive
A little game of cat and mouse last night 😻
NEW YORK, NY - OCTOBER 28: Paris Hilton and Nicky Hilton Rothschild attend amfAR & The Naked Heart Foundation Fabulous Fund Fair at Skylight Clarkson Sq on October 28, 2017 in New York City. (Photo by Kevin Tachman/amfAR2017/WireImage)
#strangerthings have happened #happyhalloween
Everyone else can go home Demi Lovato just won Halloween https://t.co/W6G6QuDYgF
And from the front. #hedwigandtheangryinch 💋
#juno #happyhalloween @kellysawyer and I 👫
Nas, dressed as Richard Pryor, attended a bash at Goldbar where the crowd enjoyed themed cocktails made with Tequila Don Julio.
If she doesn't scare you no evil thing will... I’m sharing this years halloween costume on laurenconrad.com today 👻🎃🕷
When your daughter demands you BOTH be ELSA for Halloween...you GRIN AND FORKING BEAR IT.
Baby Girl Aaliyah https://t.co/5GUHkNJgNi
I'll be looking for one of these today. #icrackmyselfup
1st rule of fight club.
Strangé & Eddie
LOS ANGELES, CA - OCTOBER 27: Derek Hough (L) and Hayley Erbert attend Casamigos Halloween Party on October 27, 2017 in Los Angeles, California. (Photo by Michael Kovac/Getty Images for Casamigos Tequila)
Kendrick Lamar as Jesus Christ.
Imperfection is beauty, madness is genius and it's better to be absolutely ridiculous than absolutely boring. - Marilyn Monroe
STRANGER THINGS SEASON 2! There are two Eleven’s in town 👣 Thank you @Lyft for giving me a the most radical free ride and for sharing my love of this brilliant show. #lyftstrangemode
FREAKSHOW 📸 @eliastahan
The party was hoppin’ last night 🎃 #halloween #squad #lanights #RnB #bachelornation
Let the Halloween festivities begin! 🎃👻💀
PHILADELPHIA, PA - OCTOBER 28: Actresses Sarah Paulson and Holland Taylor are seen arriving at film director M. Night Shyamalan's Halloween party 'Shyamaween' on October 28, 2017 in Philadelphia, Pennsylvania. (Photo by Gilbert Carrasquillo/GC Images)