Photos: Celebrities in their Halloween 2018 costumes
Adam Lambert attends Just Jared's 7th Annual Halloween Party at Goya Studios on October 27, 2018 in Los Angeles, California. Rodin_Eckenroth
Paris Hilton attends the Casamigos Halloween Party on October 26, 2018 in Beverly Hills, California. Michael Kovac
Shauna Robertson (L) and Edward Norton attend the Casamigos Halloween Party on October 26, 2018 in Beverly Hills, California. Michael Kovac
Sarah Michelle Gellar attends the 2018 GOOD+ Foundation's 3rd Annual Halloween Bash presented by Delta Air Lines and Otter Pops on October 28, 2018 in Culver City, California.Matt Winkelmeyer
Kendall Jenner attends Casamigos Halloween party at CATCH Las Vegas at ARIA Resort & Casino on October 27, 2018 in Las Vegas, Nevada. Bryan Steffy
Actor George Clooney speaks to an interviewer during Casamigos & CATCH Halloween party at CATCH Las Vegas in ARIA Resort & Casino on October 27, 2018 in Las Vegas, Nevada.Gabe Ginsberg
Rande Gerber, Cindy Crawford, George Clooney and Mike Meldman attend Casamigos & CATCH Halloween party at CATCH Las Vegas in ARIA Resort & Casino on October 27, 2018 in Las Vegas, Nevada. Gabe Ginsberg
Just Jared (L) and Ireland Baldwin attend Just Jared's 7th Annual Halloween Party at Goya Studios on October 27, 2018 in Los Angeles, California. Rodin Eckenroth
Leona Lewis attends Just Jared's 7th Annual Halloween Party at Goya Studios on October 27, 2018 in Los Angeles, California. Rodin_Eckenroth
Singer Joey Fatone (L) receives a kiss from television personality Jonathan Scott during DJ Cassidy's performance at Casamigos & CATCH Halloween party at CATCH Las Vegas in ARIA Resort & Casino on October 27, 2018 in Las Vegas, Nevada.Gabe Ginsberg
Evan Ross attends Just Jared's 7th Annual Halloween Party at Goya Studios on October 27, 2018 in Los Angeles, California.Rodin Eckenroth
Television personality Jonathan Scott attends Casamigos & CATCH Halloween party at CATCH Las Vegas in ARIA Resort & Casino on October 27, 2018 in Las Vegas, Nevada.Gabe Ginsberg
Chair of Fatherhood Leadership Council, GOOD+ Foundation Jerry Seinfeld attends the 2018 GOOD+ Foundation's 3rd Annual Halloween Bash presented by Delta Air Lines and Otter Pops on October 28, 2018 in Culver City, California.Emma McIntyre
Rumer Willis attends Just Jared's 7th Annual Halloween Party at Goya Studios on October 27, 2018 in Los Angeles, California. Rodin Eckenroth
Ike Barinholtz, Erica Hanson, Payton June Barinholtz, Foster Barinholtz attends the 2018 GOOD+ Foundation's 3rd Annual Halloween Bash presented by Delta Air Lines and Otter Pops on October 28, 2018 in Culver City, California.Matt Winkelmeyer
Aubrey Anderson-Emmons attends the 2018 GOOD+ Foundation's 3rd Annual Halloween Bash presented by Delta Air Lines and Otter Pops on October 28, 2018 in Culver City, California.Matt Winkelmeyer
(L-R) Lola Jolie Thomas, Aonika Laurent, Luc Laurent Thomas and Sean Patrick Thomas attend the 2018 GOOD+ Foundation's 3rd Annual Halloween Bash presented by Delta Air Lines and Otter Pops on October 28, 2018 in Culver City, California. Matt Winkelmeyer
(L-R) Olivia Munn, Rande Gerber and Cindy Crawford attend the Casamigos Halloween Party on October 26, 2018 in Beverly Hills, California. Michael Kovac
(L-R) DJ Cassidy, actor J. B. Smoove and Catch Hospitality Group co-founder Mark Birnbaum attend Casamigos & CATCH Halloween party at CATCH Las Vegas in ARIA Resort & Casino on October 27, 2018 in Las Vegas, Nevada. Gabe Ginsberg
LAS VEGAS, NV - OCTOBER 27: Actor J. B. Smoove takes a selfie during DJ Cassidy's performance at Casamigos & CATCH Halloween party at CATCH Las Vegas in ARIA Resort & Casino on October 27, 2018 in Las Vegas, Nevada. Gabe Ginsberg
Matthew Morrison and Renee Puente attend the 2018 GOOD+ Foundation's 3rd Annual Halloween Bash presented by Delta Air Lines and Otter Pops on October 28, 2018 in Culver City, California. Matt Winkelmeyer