Ed Westwick
The Gossip Girl star attends the 9th annual Trick or treats! Halloween Party with Absolut Elyx and Honey Birdette at No Vacancy.
Heidi Klum
For her annual Halloween party, the supermodel steps out as a gory alien.
Georgia Fowler
The model channels Audrey Hepburn's Holly Golightly—but brings her breakfast to go!
Hunter McGrady
This model is showing us what life is like under the sea.
Usher
Instead of trick or treating, the music superstar heads to "Halloween Horror Nights" at Universal Studios Hollywood.
Maluma
The superstar singer makes an entrance at Heidi Klum's annual bash.
Jonathan Van Ness
Rawr, honey! The Queer Eye star looks picture puuurfect.
Kameron Westcott
The Real Housewives of Dallas star dresses up as a Birkin at the Halloween Boxtume Bash charity event for Magic Wheelchair and Amazon Prime in Dallas.
Questlove
The musician puts a twist on the farmer's typical rake with his modern American Gothic getup.
Neil Patrick Harris & David Burtka
The duo follows their longstanding family Halloween tradition with an elaborate family costume. This year, along with 9-year-old twins Gideon and Harper, they dress up as famous artists throughout history.
Kate Hudson
"Hey lady," the actress wrote on Instagram when showing off her daughter's ladybug costume from Hanna Andersson.
Miley Cyrus & Cody Simpson
The singer and her main man draw inspiration from Billy Idol and Perry Lister and pack on the PDA in Nashville at Dream Nashville.
Brad Goreski
The stylist channels his inner J.Lo by breaking out that Versace jungle dress.
John Stamos
"Yes, your dad is really Ernesto De La Cruz!" the Fuller House star jokingly told his daughter.
Jesse Tyler Ferguson & Justin Mitika
The Modern Family star and his husband dress as Billie Eilish and her brother Finneas.
Dakota Fanning
The actress is doing the "scrub a dub dub" in the tub, but without the water in her Tipsy Elves outfit.
Sarah Michelle Gellar & Freddie Prinze Jr.
Need a hint? The caption is: "Great Scott!!!"
Nikki & Brie Bella
The Bella fam shows everyone how it's done with their Disney inspired costumes.
Debra Messing
The Will & Grace star revealed, "And this year it's... JOAN OF ARC!"
Charlize Theron
The actress joked, "My mom was upset they didn't pick her to play Morticia so she gets this one night."
Molly Sims
"There's no place like home#wizardofoz #happyhalloween," the star captioned her adorable family photo.
Mindy Kaling
Cliff Booth, reporting for duty.
Kristen Bell & Dax Shepard
With the Shepard-Bell family, it's always Christmas.
Hoda Kotb
"Another Halloween in the books," the Today host shared.