Ariel Winter
The Modern Family star celebrates Halloween week at The Queen Mary's Dark Harbor in Long Beach, California.
January Jones
"Rapunzel selfie for the win/lose," the actress shared on Instagram while dressed as Disney's Rapunzel.
Kendall Jenner
The Keeping Up With the Kardashians star dresses up like a Powerpuff Girl in her custom Bryan Hearns design.
John Legend
"Happy Halloween! #copacabana," the "All of Me" singer shared on Instagram while posing with Chrissy Teigen.
Heidi Klum
Ready for Halloween? The Project Runway judge performs Michael Jackson's "Thriller" during her 18th Annual Halloween Party sponsored by SVEDKA Vodka at Magic Hour Rooftop Bar and Lounge at Moxy Times Square.
Pink
"Happy Halloween from the crazy people #piratelife," the singer shared with her family.
Maci Bookout
"Happy Halloween from Woody, Jessie, Ken, Barbie, and BeastMode!" the Teen Mom O.G. star shared on Instagram before trick-or-treating.
Jessica Simpson & Eric Johnson
Hot damn! The husband and wife make quite a splash as Willie Nelson and Waylon Jennings.
Justin Timberlake & Jessica Biel
"If you see us in these streets then have your candy ready! Trick-Or-Treat, little homies!" the pop star wrote on social media, signing the note "Woody, Jesse, and Buzz."
Halsey & G-Eazy
The cute couple enjoy a cuddle during her 2nd Annual Halloween Party presented by Freixenet Cava.
Fergie
The newly single pop star steps out for trick or treating with her little boy Axl.
Jessica Alba & Cash Warren
The Alba family vants to suck your blood!
Ariel Winter and Levi Meaden
The two dress up as Leeloo and Korben Dallas from The 5th Element.
Emma Roberts & Evan Peters
No American Horror Story here! This couple makes for picture perfect witches.
Wiz Khalifa
"Wiz' World," the rapper shared on Instagram before celebrating Halloween at TAO LA and Avenue.
Sarah Michelle Gellar & Freddie Prinze Jr.
"Happy Halloween everyone!" the actor captioned this photo. "Eat your heart out John Cryer! Next year ... Maxwell Houser makes an appearance."
Jessie James Decker
The pregnant country singer and E! reality star holds her very own Mickey Mouse close.
Gisele Bündchen & Tom Brady
Millennials rejoice—the supermodel is the toast to the NFL star's avocado.
Khloe Kardashian & Tristan Thompson
Mother of dragons! The E! reality star and her basketball playing beau go as their favorite characters from Game of Thrones.
Carrie Underwood & Mike Fisher
"The only deer I am OK with @mfisher1212 'catching!'" the country singer captioned the couples shot. "@catchindeers #HelpMe #happyhalloween #veganwifeproblems"
Ryan Lochte & Kayla Rae Reid
It's a whole new world for this Olympic gold medalist and wife who wear costumes from Yandy.com
Kendra Wilkinson-Baskett & Hank Baskett
Trick or treat says this famous family!
Natalie Dormer
Yo ho, yo ho, it's a pirate's life for this actress!
Matt Lauer & Savannah Guthrie
Dolly Parton and Kenny Rogers, is that you?!