By Wonderwall.com Editors
8:36am PDT, Nov 1, 2019
Michael Douglas and Catherine Zeta-Jones attend Bette Midler's Hulaween Charity Gala Haunted Hollywood: The Golden Age in New York City on Oct. 31, 2019.
Tom Kaulitz and Heidi Klum attend Heidi Klum's 20th Annual Halloween Party presented by Amazon Prime Video and SVEDKA Vodka in New York City on Oct. 31, 2019.
David Burtka and Neil Patrick Harris, dressed respectively as Ashley Olsen and Mary-Kate Olsen, attend Heidi Klum's 20th Annual Halloween Party presented by Amazon Prime Video and SVEDKA Vodka in New York City on Oct. 31, 2019.
Paris Hilton, Darren Dzienciol and Chantel Jeffries attend Alessandra Ambrosio and Darren Dzienciol's Horror In The Hills in Beverly Hills, California, on October 31, 2019.
Noah Galvin, Beanie Feldstein, Ben Platt and Molly Gordon attend Bette Midler's Hulaween Charity Gala 'Haunted Hollywood: The Golden Age' benefiting the New York Restoration Project in New York City on Oct. 31, 2019.
Kristen Stewart appears in costume on "The Tonight Show Starring Jimmy Fallon" during an interview in New York City on Oct. 31, 2019.
Julia Schlaepfer and Lucy Boynton attend Bette Midler's Hulaween Charity Gala Haunted Hollywood: The Golden Age in New York City on Oct. 31, 2019.
Andy Cohen is all smiles in a Snoopy costume with his baby son while Trick or Treating in New York City on Oct. 31, 2019.
Tara Reid attends the Trick Or treats! Halloween Party held at No Vacancy in Los Angeles on Oct. 31, 2019.
Elsa Hosk and Martha Hunt attend Heidi Klum's 20th Annual Halloween Party presented by Amazon Prime Video and SVEDKA Vodka in New York City on Oct. 31, 2019.
Paris Hilton attends a Halloween party in Los Angeles on Oct. 30, 2019.
Jonathan Van Ness attends Heidi Klum's 20th Annual Halloween Party presented by Amazon Prime Video and SVEDKA Vodka in New York City on Oct. 31, 2019.
Ben Affleck picks up Samuel from school in Los Angeles on Oct. 31, 2019.
"Live your truth, people. Happy Halloween. " —Jennifer Garner, who posted this video to Instagram on Oct. 30, 2019
Bette Midler attends Bette Midler's Hulaween Charity Gala Haunted Hollywood: The Golden Age in New York City on Oct. 31, 2019.
Aziz Ansari dresses up for the Jonathan Ross Halloween party in London on Oct. 31, 2019.
Liam Payne and Maya Henry dress up for the Jonathan Ross Halloween party in London on Oct. 31, 2019.
Savannah Guthrie and Carson Daly dress up as characters from "Grease" in New York City on Oct. 31, 2019.
Heidi Klum attends Heidi Klum's 20th Annual Halloween Party presented by Amazon Prime Video and SVEDKA Vodka in New York City on Oct. 31, 2019.
Cyndi Lauper attends Bette Midler's Hulaween Charity Gala Haunted Hollywood: The Golden Age in New York City on Oct. 31, 2019.
Joan Collins attends Bette Midler's Hulaween Charity Gala Haunted Hollywood: The Golden Age in New York City on Oct. 31, 2019.
Heidi Klum dresses in her Halloween costume at an Amazon store in New York City on Oct. 31, 2019.
Drake dresses as his father Dennis Graham for a Halloween party at Poppy Night Club in West Hollywood, California, on Oct. 30, 2019.
Los Angeles Rams quarterback Jared Goff attends Todd Gurley's Halloween party at Poppy Night club dressed as tennis player Andre Agassi in West Hollywood, California, on Oct. 30, 2019.
Molly Sims and her son, dressed as one of the Fab 4, head to school in Los Angeles on Oct. 30, 2019.
Al Roker and Craig Melvin dressed up as Carlton and the Fresh Prince of Bel-Air for the "Today" show's dance-themed Halloween special on Oct. 31, 2019.
Kesha dresses up as an octopus at the Jack Daniel's "Raising Hell, Raising Spirits" Halloween-themed event celebrating the launch of Jack Daniel's Tennessee Apple at the Houdini Estate in Los Angeles on Oct. 29, 2019.
Demi Lovato dresses up as Pennywise from "It" at her 4th Annual Halloween Party at sbe hotspot Hyde Sunset with Umami Burger and Sugary Factory in Hollywood on Oct. 26, 2019.
G-Eazy dresses up as Edward Scissorhands at Marquee New York's Night of the Fallen Halloween party in New York City on Oct. 26, 2019.
Lais Ribeiro dresses up as Neytiri from "Avatar" at Marquee New York's Night of the Fallen Halloween party in New York City on Oct. 26, 2019.
Kelly Osbourne takes to Instagram in late October 2019 to show off her Halloween clown makeup.
Evan Peters and Halsey dress up as Sonny & Cher at FX's" American Horror Story" 100th Episode Celebration at the Hollywood Forever Cemetery in Los Angeles on Oct. 26, 2019.
Cardi B dresses up as a nurse at iHeart Radio Powerhouse at the Prudential Center in Newark, New Jersey, on Oct. 27, 2019.
Angelica Ross dresses up as a Clovers cheerleader from "Bring It On" at FX's" American Horror Story" 100th Episode Celebration at the Hollywood Forever Cemetery in Los Angeles on Oct. 26, 2019.
Kathy Bates dresses up as a cat at FX's" American Horror Story" 100th Episode Celebration at the Hollywood Forever Cemetery in Los Angeles on Oct. 26, 2019.
Saweetie dresses up as a Playboy Bunny while performing at Bootsy Bellows featuring specialty Guillotine Vodka cocktails in West Hollywood on Oct. 29, 2019.
Gus Kenworthy attends FX's" American Horror Story" 100th Episode Celebration at the Hollywood Forever Cemetery in Los Angeles on Oct. 26, 2019.
Avril Lavigne attends the UNICEF Masquerade Ball in Los Angeles on Oct. 26, 2019.
Billie Lourd attends FX's" American Horror Story" 100th Episode Celebration at the Hollywood Forever Cemetery in Los Angeles on Oct. 26, 2019.
Olivia Culpo attends the UNICEF Masquerade Ball in Los Angeles on Oct. 26, 2019.
Matthew Morrison attends FX's" American Horror Story" 100th Episode Celebration at the Hollywood Forever Cemetery in Los Angeles on Oct. 26, 2019.
Gigi Gorgeous and wife Nats Getty dress up as Sally and Jack from "The Nightmare Before Christmas" at the UNICEF Masquerade Ball in Los Angeles on Oct. 26, 2019.
Constance Jablonski dresses up as Maddie Ziegler from Sia's music videos at the Posts from the Grave Halloween soiree at Fleur Room at the Moxy Chelsea in New York City on Oct. 26, 2019.
Tallulah Willis dresses up as an eyeball at the UNICEF Masquerade Ball in Los Angeles on Oct. 26, 2019.
Jhene Aiko shares a mirror selfie showing off her Halloween costume — Pokémon charatcer Ash Ketchum — on Instagram on Oct. 26, 2019.
Zach Villa attends FX's" American Horror Story" 100th Episode Celebration at the Hollywood Forever Cemetery in Los Angeles on Oct. 26, 2019.
Lisa Rinna dresses up as Jennifer Lopez at the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Jessica Biel dresses up as husband Justin Timberlake during his NSYNC days, while he dresses up as a microphone at the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Demi Lovato takes to Instagram on Oct. 24, 2019, to share a mirror selfie showing off her Marie Antoinette Halloween costume.
Molly Sims and husband Scott Stuber dress up as Jeannie and Major Nelson from "I Dream of Jeannie" at the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Nina Dobrev dresses up as Billie Eilish at the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Paris Jackson and her boyfriend, Gabriel Glenn, dress up as Radagast and Gandalf from "The Hobbit," while her brother, Prince Jackson, dresses up as Clark Griswold from "National Lampoon's Christmas Vacation" at the Third Annual Thriller Night Costume Party to benefit Heal Los Angeles in L.A. on Oct. 25, 2019.
Rande Gerber and Cindy Crawford attend the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Maria Menounos and husband Keven Undergaro dress up as retro McDonald's employees at the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Patrick Schwarzenegger and girlfriend Abby Champion dress up as Austin Powers and a fembot at the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
David Arquette and wife Christina McLarty dress up as former KISS drummer Peter Criss and his wife, Lydia Criss, at the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Roma Downey and Mark Burnett dress up as Morticia Addams and Freddie Mercury at the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Laverne Cox attends the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Mario Lopez dresses up as Cap`n Crunch while taking his kids, Dominic and Gia, to a Halloween party in Los Angeles on Oct. 21, 2019.
Paris Hilton dresses up as a showgirl at the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Liam Payne dresses up as Clark Kent for the KISS Haunted House Party in London on Oct. 25, 2019.
Amber Valletta dresses up as Twiggy at the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Jasmine Tookes dresses up as a pirate at the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Eiza Gonzalez dresses up as Maleficent at the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Kaitlynn Carter attends the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Stephen Amell and wife Cassandra Jean dress up as franks-n-beans at the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Wiz Khalifa dresses up as Rambo at Oxford Social Club's "Oxford Horror Story: Murder House" Halloween-themed party in San Diego on Oct. 25, 2019.
Diego Boneta attends the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Linda Thompson attends the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Demi Lovato shares a selfie of her Halloween costume — Pennywise from "It" — on her Instagram Story on Oct. 26, 2019.
Justin Timberlake dresses up as a microphone at the Casamigos Halloween party in Beverly Hills on Oct. 25, 2019.
Chuck Liddell dresses up as a prison inmate as Dan Bilzerian's Halloween party sponsored by Ignite International, Ltd., Alister and BlitzBet in Los Angeles on Oct. 24, 2019.
Gigi Gorgeous dresses up as Sally from "The Nightmare Before Christmas" at the UNICEF Masquerade Ball in Los Angeles on Oct. 26, 2019.
