Celebs celebrating Halloween in 2017

Heidi Klum dresses up for her 18th Annual Halloween Party in New York City on Oct. 31, 2017.

Hoda Kotb appears as Blake Shelton and Al Roker appears as Willie Nelson are spotted walking around NBC in New York City on Oct. 30, 2017.

Paris Hilton attends Treats! Magazine 7th Halloween Party in Los Angeles on Oct. 31, 2017.

Heather Graham attends Heidi Klum's 18th Annual Halloween Party in New York City on Oct. 31, 2017.

Alec Baldwin, Rafael Baldwin, Leonardo Baldwin, Carmen Baldwin, and Hilaria Baldwin appear in Halloween costumes on Oct. 31, 2017.

Nicole Scherzinger attends the Jonathan Ross Halloween Party in London on Oct. 31, 2017.

Coco Austin and Ice-T attend Heidi Klum's 18th Annual Halloween Party in New York City on Oct. 31, 2017.

Kendall Jenner and Hailey Baldwin were seen in their Halloween Costumes arriving at Delilah in West Hollywood, Calif., on Oct. 31, 2017.

La La Anthony dresses as a Ninja while arrives at her Costume Couture Halloween party at TAO in New York City on Oct. 31, 2017.

Natalie Dormer attends the Jonathan Ross Halloween Party in London on Oct. 31, 2017.

Meagan Good is seen in her costume at Chris Brown's album release party in Universal Studios, Calif., on Oct. 31, 2017.

Alessandra Ambrosio is spotted in her skeleton costume in Los Angeles on Oct. 31, 2017.

Dylan Sprouse attends Heidi Klum's 18th Annual Halloween Party in New York City on Oct. 31, 2017.

Nick Cannon attends Heidi Klum's 18th Annual Halloween Party in New York City on Oct. 31, 2017.

Skylar Astin and Anna Camp attend Bette Midler's Hulaween Party benefiting The New York Restoration Project in New York City on Oct. 30, 2017.

Diplo attends Treats! Magazine 7th Halloween Party in Los Angeles on Oct. 31, 2017.

Bette Midler appears at her own Hulaween Party benefiting The New York Restoration Project in New York City on Oct. 30, 2017.

Ed Sheeran attends the Jonathan Ross Halloween Party in London on Oct. 31, 2017.

Sarah Paulson and Holland Taylor attend M. Night Shyamalan's Shyamaween party in Philadelphia on Oct. 28, 2017.

Dita Von Teese attends Bette Midler's Hulaween Party benefiting The New York Restoration Project in New York City on Oct. 30, 2017.

Jessica Alba and Cash Warren show off their Halloween costumes as they leave the Poppy club after attending Kelly Rowland's Halloween Party in Los Angeles on Oct. 29, 2017.

Ariel Winter attends Just Jared's 6th Annual Halloween Party in Beverly Hills, Calif., on Oct. 27, 2017.

Claudia Schiffer attends the Jonathan Ross Halloween Party in London on Oct. 31, 2017.

Tara Reid attends Treats! Magazine 7th Halloween Party in Los Angeles on Oct. 31, 2017.

Kelly Rowland attends Ciroc Kicks Off Halloween with Lenny S. & Kelly Rowland's Costume Couture at Poppy in Los Angeles on Oct. 29, 2017.

Angela Simmons dresses up as Captain America at La La Anthony's Halloween party at TAO in New York City on Oct. 31, 2017.

Frankie Muniz and dancer Witney Carson pose at "Dancing with the Stars" season 25 at CBS Televison City in Los Angeles on Oct. 30, 2017.

"Real Housewives of New Jersey" star Melissa Gorga throws a Halloween party at her house in Montville, New Jersey, on Oct. 28, 2017.

Madison Beer shows off her beautiful Halloween costume as she goes to the Delilah club in West Hollywood, Calif, on Oct. 31, 2017.

Ben Platt attends Bette Midler's Hulaween Party benefiting The New York Restoration Project in New York City on Oct. 30, 2017.

Kim Kardashian and Jonathan Cheban attend the Tequila Casamigos annual Halloween Bash in Los Angeles on Oct. 27, 2017.

Paris Hilton and Chris Zylka attend the 2017 amfAR & The Naked Heart Foundation Fabulous Fund Fair in New York City on Oct. 28, 2017.

Usher and Tyler Perry attend Ciroc Kicks Off Halloween with Lenny S. & Kelly Rowland's Costume Couture at Poppy in Los Angeles on Oct. 29, 2017 .

Amal Clooney and Cindy Crawford attend the Tequila Casamigos annual Halloween Bash in Los Angeles on Oct. 27, 2017.

"Real Housewives of New Jersey" stars Teresa Giudice and Joe Gorga attend a Halloween party in Montville, New Jersey, on Oct. 28, 2017.

Seth MacFarlane shows off his costume as he goes to the Casamigos Halloween Party in West Hollywood, Calif., on Oct. 27, 2017.

Karlie Kloss attends the 2017 amfAR & The Naked Heart Foundation Fabulous Fund Fair in New York City on Oct. 28, 2017.

Chord Overstreet steps out in a Halloween costume in Los Angeles on Oct. 29, 2017.

Matthew Morrison leaves his halloween party in Los Angeles, Calif., on Oct. 28, 2017.

Lauren Conrad is seen for a night out as Cruella de Vil for Matthew Morrison's 7th annual Halloween party in Los Angeles, Calif., on Oct. 28, 2017.

Nicky Hilton attends the 2017 amfAR & The Naked Heart Foundation Fabulous Fund Fair in New York City on Oct. 28, 2017.

Naomi Campbell attends the 2017 amfAR & The Naked Heart Foundation Fabulous Fund Fair in New York City on Oct. 28, 2017.

LuAnn de Lesseps attends LuAnn de Lesseps & Dita Von Teese Halloween party at Manor849 in New York City on Oct. 28, 2017.

Anwar Hadid and Nicola Peltz attend Matthew Morrison's 7th annual Halloween party in Los Angeles, Calif., on Oct. 28, 2017.

Ariel Winter and Levi Meaden exit Poppy dressed as Leeloo and Korben Dallas from the film "5th Element" for Matthew Morrison's 7th annual Halloween party in Los Angeles, Calif., on Oct. 28, 2017.

Jaime King attends Just Jared's 6th Annual Halloween Party in Beverly Hills, Calif., on Oct. 27, 2017.

Joanna Krupa attends the Tequila Casamigos annual Halloween Bash in Los Angeles on Oct. 27, 2017.

Alessandra Ambrosio attends the Tequila Casamigos annual Halloween Bash in Los Angeles on Oct. 27, 2017.

Derek Hough attends the Tequila Casamigos annual Halloween Bash in Los Angeles on Oct. 27, 2017.

Katharine McPhee attends Just Jared's 6th Annual Halloween Party in Beverly Hills, Calif., on Oct. 27, 2017.

Kevin McHale dresses up as a hospital patient to attend Matthew Morrison's 7th annual Halloween party in Los Angeles, Calif., on Oct. 28, 2017.

Ellie Goulding attends the 2017 amfAR & The Naked Heart Foundation Fabulous Fund Fair in New York City on Oct. 28, 2017.

Darren Criss and Mia Swier attend Matthew Morrison's 7th annual Halloween party in Los Angeles, Calif., on Oct. 28, 2017.

Molly Sims attends the Tequila Casamigos annual Halloween Bash in Los Angeles on Oct. 27, 2017.

Kaitlynn Carter attends the Casamigos Halloween Party in Los Angeles on October 27, 2017.

Michelle Trachtenberg attends the Tequila Casamigos annual Halloween Bash in Los Angeles on Oct. 27, 2017.

Rachel Zoe attends the Tequila Casamigos annual Halloween Bash in Los Angeles on Oct. 27, 2017.

Karlie Kloss and Joan Smalls attend The Metropolitan Museum of Art's 'All Hallows' Eve' benefit in New York City on Oct. 26, 2017.

Jessica Chastain and Lauren Santo Domingo attend The Metropolitan Museum of Art's 'All Hallows' Eve' benefit in New York City on Oct. 26, 2017.

Rita Ora dresses up as Poison Ivy at the KISS House Party at SSE Wembley Arena in London on Oct. 26, 2017.

Nicky Hilton Rothschild attends The Metropolitan Museum of Art's 'All Hallows' Eve' benefit in New York City on Oct. 26, 2017.

Jerry Seinfeld and Jessica Seinfeld attend the Good Plus Foundation Halloween Bash in Los Angeles on Oct. 22, 2017.

Valentin Chmerkovskiy and Jenna Johnson attend the Maxim Halloween Party in Los Angeles on Oct. 21, 2017.

Sarah Michelle Gellar attends the Good Plus Foundation Halloween Bash in Los Angeles on Oct. 22, 2017.

Justin Hartley hits Universal Studios Hollywood's "Halloween Horror Nights" on Sept. 30, 2017.

Joanna Krupa attends the Maxim Halloween Party in Los Angeles on Oct. 21, 2017.

Snoop Dogg hits Universal Studios Hollywood's "Halloween Horror Nights" on Oct. 20, 2017.

Tara Reid attends the Maxim Halloween Party in Los Angeles on Oct. 21, 2017.

Bella Thorne hits Knott's Scary Farm in Los Angeles on Sept. 29, 2017.

Aubrey O'Day attends the Maxim Halloween Party in Los Angeles on Oct. 21, 2017.

Vanessa Hudgens visits Knott's Scary Farm in Los Angeles on Sept. 29, 2017.

Travis Barker and kids Alabama and Landon Barker hit Universal Studios Hollywood's "Halloween Horror Nights" on Sept. 30, 2017.

Corinne Olympios and DeMario Jackson attend the Maxim Halloween Party in Los Angeles on Oct. 21, 2017.

Peta Murgatroyd and Maksim Chmerkovskiy attend the Maxim Halloween Party in Los Angeles on Oct. 21, 2017.

Dylan Minnette, Braeden Lemasters and Cole Preston of the Wallows came together to enjoy a night of terror at Universal Studios Hollywood's "Halloween Horror Nights" on Sept. 16, 2017.

Erin Foster and Sara Foster dressed up as Ivana Trump and Melania Trump for Svedka Vodka's pre-Halloween cocktail event at Beauty & Essex in Hollywood on Oct. 17, 2017.