The singer appears with freaky makeup just before the holiday. "Shoutout last night's sad girls club," she wrote on Instagram.
"Look at me I'm Sandra Dee!" The supermodel nails the iconic Grease character with House of CB's cropped 'Roche' top at Heidi Klum's Halloween party.
The reality star appears as a Ninja warrior for Halloween 2015.
The reality star also appears as a "snow princess" the day before the holiday.
The rapper kicks off Halloween weekend at 1 OAK Nightclub at the Mirage Hotel & Casino in Las Vegas.
The former Jersey Shore star and her family do Star Wars!
The married couple have a very different take on The Cat in the Hat at George Clooney's Casamigos Tequila Halloween party!
After cheering on the New York Mets, the singer gets spooky for Heidi Klum's Halloween party.
The model showcases a racy look.
The singer rocks a sexy cowgirl costume on the night before Halloween!
The Voice coach goes incognito at George Clooney's Casamigos Tequila Halloween party.
"Look at my mother working her Halloween costume! Go M-Dogggg @mariashriver," Patrick Schwarzenegger wrote on Twitter with his mom's costume.
The former The Hills star attends George Clooney's Casamigos Tequila Halloween party.
The Dancing With the Stars judge appears as Alabama from True Romance at George Clooney's Casamigos Tequila Halloween party.
George Clooney's besties rock the rocker looks.
Rawr!
"Ugh Belle I've been telling you to get a damn Kindle. #SubwayStyle #HappyHalloween," she wrote on Instagram.
The sisters sport sexy costumes at George Clooney's Casamigos Tequila Halloween party.
The Hollywood couple appears as Romy from Romy & Michele's High School Reunion and Maverick from Top Gun.
We've got our first celebrity Pizza Rat sighting!
The Dancing With the Stars pros and on-again, off-again couple are quite the pair of ghouls.
The Scrubs alum is a...Green Lantern?
The Real Housewives of Beverly Hills couple make quite the scary duo.
The Full House star and Full House alum goes all Alfred Hitchcock at George Clooney's Casamigos Tequila Halloween party.