Demi Lovato
In between celebrating the success of her latest single "Sorry Not Sorry," the singer hits up Universal Studio's Halloween Horror Nights.
Corinne Olympios and DeMario Jackson
The two get playful at the Maxim Halloween party.
Jason Derulo
The singer performs as Game of Thrones' Night King.
Ice-T & Coco
"We highly recommend it. It was so much fun," Coco wrote on Instagram after visiting Universal Studio's Halloween Horror Nights.
Tom Sandoval
The Vanderpump Rules fan-favorite arrives at the 2017 MAXIM Halloween Party at LA Center Studios with an ensemble not exactly fit for SUR.
Tara Reid
The actress showcases a shredded look.
Jodie Sweetin
The Fuller House star alongside co-stars Juan Pablo Di Pace and John Brotherton attend Universal Studio's Halloween Horror Nights.
Chase McNary, Robby Hayes and DeMario Jackson
Bachlor Nation represent!
Maksim Chmerkovskiy and Peta Murgatroyd
The Dancing With the Stars married couple strike a pose at the MAXIM Halloween Party.
Scheana Marie
The Vanderpump Rules star is a sexy skeleton
Jerry Seinfeld, Jessica Seinfeld & Gwyneth Paltrow
"@jessseinfeld @jerryseinfeld and I (in no costume, LAME) at the 2nd annual @goodplusfdn Halloween bash!" Gwyneth wrote on Instagram. "Please see next slide for best baby costume ever in the history of the world."
Channing Tatum
The proud papa slips on a unicorn costume for his daughter's preschool's Halloween carnival.
Jenna Dewan Tatum
The actress goes as a fairy for daughter Everly's Halloween costume carnival at her preschool.
Emma Kenney
The star of Shameless and the reboot of Roseanne is all dolled up.
Kelly Ripa & Ryan Seacrest
Before Live With Kelly & Ryan airs their Halloween special, the co-hosts teased their Game of Thrones costumes.
Jaime King
"When the fam takes Halloween VERY seriously @powerrangers @walmart #powerrangers," the actress shared on Instagram while wearing matching Power Rangers movie costumes.
Chrissy Teigen
"Hay place. a place for hay," the proud mom wrote on Instagram after visiting Mr. Bones Pumpkin Patch with John Legend and baby Luna.
Catherine Lowe
"FRIDAY IS LIT," The Bachelor star joked on Instagram while enjoying a Halloween party with her family.
Peyton List
Roller coasters just became a bit more scary for the Jessie star who traveled to Knott's Scary Farm in Buena Park, Calif.
Jillian Rose Reed
The Awkward star celebrates the spooky season with a visit to the Los Angeles Haunted Hayride at Griffith Park.
Thomas Rhett
"To watching Hocus Pocus 4 million times before Halloween and to carving Willa Gray's first pumpkin," the "Unforgettable" country singer shared on Instagram.
Ashton Kutcher & Danny Masterson
Joined by co-star Elisha Cuthbert, the Hollywood stars celebrate Halloween early on the set of their Netflix show The Ranch that returns December 15.
Paris Hilton
That's hot scary! The DJ and model can't help but smile in the face of terror at Universal Studios Hollywood's "Halloween Horror Nights."
Jade Tolbert
"Pumpkin patch parent fail. When you both are so excited to start family traditions, but your baby only wants to nap in your arms," the Bachelor in Paradise star joked online. "At least we still got apple cider donuts. #weweretherefor5minutes #newbies."