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

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.