Alexa Chung dressed as Mermaid with Plastic at The Misshapes Halloween party hosted by Ketel One Family-Made Vodka on October 27, 2018 in New York City. (Photo by Astrid Stawiarz/Getty Images for Ketel One Family-Made Vodka)





Bella Thorne and Mod Sun arrive to halloween party dressed as Tiffany and Chucky from Bride of Chucky in Los Angeles, CA on October 31, 2018. (Photo by Pap Nation/Splash News and Pictures)





Zoe Kravitz attends the Casamigos Halloween Party on October 26, 2018 in Beverly Hills, California. (Photo by Michael Kovac/Getty Images for Casamigos)





Brody Jenner (L) and Kaitlynn Carter attend the Casamigos Halloween Party on October 26, 2018 in Beverly Hills, California. (Photo by Michael Kovac/Getty Images for Casamigos)





Charlotte McKinney attends the Casamigos Halloween Party on October 26, 2018 in Beverly Hills, California. (Photo by Kevin Mazur/Getty Images for Casamigos)





Ciara is seen on October 30, 2018 in New York City. (Photo by JNI/Star Max/GC Images)





Daniel Nguyen (L) and Jeannie Mai attend Just Jared's 7th Annual Halloween Party at Goya Studios on October 27, 2018 in Los Angeles, California. (Photo by Rodin Eckenroth/Getty Images)





Jonathan Barbara (L) and Devon Windsor attend the V Magazine Halloween Party presented by Chanel at Jane's Carousel on October 26, 2018 in Brooklyn, New York. (Photo by Gotham/Getty Images)





Frankie Grande attends Heidi Klum's 19th Annual Halloween Party at Lavo on October 31, 2018 in New York City. (Photo by Taylor Hill/FilmMagic)





Winnie Harlow attends Heidi Klum's 19th Annual Halloween Party at Lavo on October 31, 2018 in New York City. (Photo by Taylor Hill/FilmMagic)





Ice-T and Coco attend Heidi Klum's 19th Annual Halloween Party at Lavo on October 31, 2018 in New York City. (Photo by Taylor Hill/FilmMagic)





Heidi Klum and Tom Kaulitz attend Heidi Klum's 19th Annual Halloween Party at Lavo on October 31, 2018 in New York City. (Photo by Taylor Hill/FilmMagic)





Halsey arrives at Delilah in Los Angeles, California on November 1, 2018. (Photo by Splash News and Pictures)





Ireland Baldwin attends Just Jared's 7th Annual Halloween Party at Goya Studios on October 27, 2018 in Los Angeles, California. (Photo by Rodin Eckenroth/Getty Images)





Actress Jane Krakowski attends Bette Midler's New York Restoration Project Hosts 22nd Annual Hulaween Event at Cathedral of St. John the Divine on October 29, 2018 in New York City. (Photo by Astrid Stawiarz/Getty Images)





Jenna Ortega (L) and Asher Angel attend Just Jared's 7th Annual Halloween Party at Goya Studios on October 27, 2018 in Los Angeles, California. (Photo by Rodin Eckenroth/Getty Images)





Joey Fatone (L) and Izabel Araujo attend Casamigos Halloween party at CATCH Las Vegas at ARIA Resort & Casino on October 27, 2018 in Las Vegas, Nevada. (Photo by Denise Truscello/Getty Images for Casamigos)





(L-R) Kaia Gerber, Rande Gerber, Cindy Crawford, and Presley Gerber attend the Casamigos Halloween Party on October 26, 2018 in Beverly Hills, California. (Photo by Michael Kovac/Getty Images for Casamigos)





Karolina Kurkova attends the Casamigos Halloween Party on October 26, 2018 in Beverly Hills, California. (Photo by Michael Kovac/Getty Images for Casamigos)





Katy Perry dresses up as a sloth for Halloween at Kelly and Ryan show in New York on October 30, 2018. (Photo by Jackson Lee/Splash News and Pictures)





Kendall Jenner (R) attends Casamigos Halloween party at CATCH Las Vegas at ARIA Resort & Casino on October 27, 2018 in Las Vegas, Nevada. (Photo by Bryan Steffy/Getty Images for Casamigos)





Lily-Rose Depp attends the V Magazine Halloween Party presented by Chanel at Jane's Carousel on October 26, 2018 in Brooklyn, New York. (Photo by Gotham/Getty Images)





Madison Pettis attends Just Jared's 7th Annual Halloween Party at Goya Studios on October 27, 2018 in Los Angeles, California. (Photo by Rodin Eckenroth/Getty Images)





Matthew Morrison, Renee Puente arrives at the Jessica and Jerry Seinfeld's GOOD + Halloween Bash at Sony Pictures Studios on October 28, 2018 in Culver City, California. (Photo by Steve Granitz/WireImage)





Nicky Hilton Rothschild as Paris Hilton attends the Casamigos Halloween Party on October 26, 2018 in Beverly Hills, California. (Photo by Michael Kovac/Getty Images for Casamigos)





Laura Anderson attends Kiss Haunted House Party 2018 at The SSE Arena, Wembley on October 26, 2018 in London, England. (Photo by James Shaw/Rex Features/Shutterstock





Alexandra Cane as Jessica Rabbit attends KISS Haunted house Party 2018 at The SSE Arena, Wembley on October 26, 2018 in London, England. (Photo by Maja Smiejkowska/Rex Features/Shutterstock)





Demi Rose attends KISS Haunted house Party 2018 at The SSE Arena, Wembley on October 26, 2018 in London, England. (Photo by John Phillips/Getty Images)





Laura Anderson attends KISS Haunted house Party 2018 at The SSE Arena, Wembley on October 26, 2018 in London, England. (Photo by James Shaw/Rex Features/Shutterstock)





Gabby Allen attends KISS Haunted house Party 2018 at The SSE Arena, Wembley on October 26, 2018 in London, England. (Photo by John Phillips/Getty Images)