Paris Hilton & Chris Zylka
The socialite and her beau went for an inspired look at the amfAR Halloween party.
Miles Teller and Keleigh Sperry
The actor and his fiancée are Beavis and Butthead.
Adam Devine & Chloe Bridges
It's date night for the famous pair who travel to Universal Studios Hollywood's "Halloween Horror Nights."
Terrence J & Jasmine Sanders
Dorothy and the Lion from The Wizard of Oz arrive at Hyde Sunset Kitchen + Cocktails for a night of Halloween fun sponsored by Absolut Elyx.
Bruce Willis and Stephen J. Eads
The actor and the producer, with whom he has often worked, dress up as the Grady Twins from The Shining.
Gwyneth Paltrow
The actress reprised her role from Se7en for Halloween.
Ariel Winter and Levi Meaden
The duo exit Poppy dressed as Leeloo Dallas and Korben Dallas for Matthew Morrison's 7th Annual Halloween Party.
Sarah Paulson and Holland Taylor
The two dress up as a panda and a jester.
Demi Lovato
The singer dresses up as the like Selena Quintanilla.
Adele
The singer resurfaced with this Halloween costume photo after months of staying away from the spotlight.
Kim Kardashian and Jonathan Cheban
The two dress up as Cher and Sonny Bono for the 2017 Casamigos Halloween Party.
Adam Levine
The singer said he raided wife Behati Prinsloo's closet for his Halloween costume.
Amal Clooney
George Clooney's wife gets into the '70s spirit at the 2017 Casamigos Halloween Party.
Amal Clooney, Rande Gerber and Cindy Crawford
The couple and George Clooney's lawyer wife have fun at Rande and George's 2017 Casamigos Halloween Party.
Kaia Gerber and Presley Gerber
Rande Gerber and Cindy Crawford's kids embrace the '70s.
Adrien Brody
He's so soft and cuddly!
Michelle Trachtenberg
It's the Buffy the Vampire Slayer and Gossip Girl alum like you've never seen her before!
Joe Keery
Fancy a game of Quiddich? The Stranger Things star is a dead ringer for Harry Potter circa Goblet of Fire!
Ariel Winter
The Modern Family star appears as a skeleton at Just Jared's 6th Annual Halloween Party.
NeNe Leakes and Gregg Leakes
At a Real Housewives of Atlanta Halloween party, the twosome poke fun at a controversy involving Kim Zolciak-Biermann and her daughter Brielle Biermann.
Real Housewives of Atlanta Cast
The Bravo stars go all out for a spooky holiday party.
Kim Zolciak-Biermann
Before attending the finale of Real Housewives of Atlanta, the Bravo star poses with Kroy Biermann in their Playboy-inspired attire.
Angela Simmons
"Early Halloween costume party fun," the reality star shared on Instagram.
Kendra Wilkinson-Baskett
"Happy #NationalPumpkinDay," the Kendra On Top star shared on social media with photos of her children.