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Here are the Best Celebrity Halloween 2021 Costumes

The best part of Halloween is seeing how committed celebs are to their costumes! Heidi Klum has certainly made her stamp as a Halloween queen, but she’s got some competition…

Harry Styles "Harryween" Fancy Dress Party

Harry Styles performs onstage at Harry Styles “Harryween” Fancy Dress Party at Madison Square Garden on October 30, 2021 in New York City.

Theo Wargo/Getty Images

The best part of Halloween is seeing how committed celebs are to their costumes! Heidi Klum has certainly made her stamp as a Halloween queen, but she's got some competition this year with folks like Ariana Grande and The Weeknd pulling out all the stops! See what amazing costumes blew us away below!

The Weeknd as Don Vito Corleone

The Weeknd wore full prosthetics to channel this Godfather character, looking spot on!

Hailey Bieber as Britney Spears

Hailey said the first concert she ever went to was the "queen" Britney Spears and she has been shook ever since. This Halloween, she returned the favor to us, by dressing as the Princess of Pop.

Katy Perry and Orlando Bloom as a Vaccine and Doctor

Katy Perry's syringe reads: "Katy & Perry," a cute play on the Johnson & Johnson vaccine.

Doja Cat as Cynthia the Doll

Doja Cat dressed up as Angelica Pickles' favorite toy from '90s animated show Rugrats. She nailed the really stiff blonde 'do!

Harry Styles as Dorothy

From his Harryween Madison Square Garden performance in NYC, Harry wore custom Gucci with his band as Wizard of Oz characters. Harry became the gender-bended Dorothy and fans on Twitter could not get enough of it!

Lil Nas X as Voldemort and Seth Powers

Lil Nas X never fails to impress on Halloween -- this year being he-who-must-be-called-by-your-name and Seth Powers, the handsome yet dumb jock from television series Ned's Declassified School Survival Guide.

Joe Jonas and Sophie Turner as Paolo and Isabella

The couple threw it way back with The Lizzie McGuire Movie characters Paolo Valisari and Isabella Parigi, with their friend Olivia De Jonge as Lizzie McGuire.

Chrissy Teigen as a Carmen Miranda

Husband John Legend was dressed as a dapper Cuban to match his wife.

Ariana Grande as Miss Creature

Amazing! Startling! Shocking! Ariana Grande does all three as Miss Creature from the Black Lagoon as her husband Dalton Gomez went as "handsome scuba man."

Kendall Jenner as Martian Girl

Kendall Jenner nailed her Mars Attacks! Halloween look with a HUGE blonde beehive hairdo.

Laila Abuelhawa is the Top 40 and Hip-Hop pop culture writer for Beasley Media Group. Being with the company for over three years, Laila's fierce and fabulous red-carpet rankings have earned her a feature on 'The Late Show with Stephen Colbert!' Her favorite stories are those surrounding the latest in celebrity fashion, television and film rankings, and how the world reacts to major celebrity news. With a background in journalism, Laila's stories ensure accuracy and offer background information on stars that you wouldn't have otherwise known. She prides herself in covering stories that inform the public about what is currently happening and what is to come in the ever-changing, ever-evolving media landscape.