Halloween might still be a few days away, but celebrities who attended parties this weekend took to social media to share their epic costumes — and let's just say a lot of them brought their A-game.

While stars like Demi Lovato and Halsey dressed up in multiple costumes, there were tons of other amazing Halloween transformations so far this year. Nina Dobrev turned herself into Billie Eilish, Nicki Minaj channeled her inner Harley Quinn and Gabrielle Union and her daughter dressed up like her Bring It On character.

Below, scroll through the list to see all the celebs that killed it this Halloween.

  • 1

    Demi Lovato as Pennywise

  • 2

    Halsey as Marilyn Mason

  • 3

    Ashley Graham as Jessica Rabbit

  • 4

    Nicki Minaj as Harley Quinn

  • 5

    Nina Dobrev as Billie Eilish

  • 6

    Camila Mendes as Rick from Rick & Morty

  • 7

    Cardi B as a Nurse

  • 8

    Kylie Jenner as Madonna

  • 9

    Liam Payne as Clark Kent

  • 10

    Jessica Biel as Justin Timberlake in *NYSNC

  • 11

    G-Eazy as Edward Scissorhands

  • 12

    Kate Beckinsale as Audrey Hepburn

  • 13

    Gabrielle Union as Bring It On Character

  • 14

    Arielle Vandenberg as Justin Bieber

  • 15

    Missy Elliot as Herself Circa 1997

  • 16

    Stormi Webster as Kylie Jenner

  • 17

    Kourtney Kardashian as Ariana Grande

  • 18

    Heidi Klum and Tom Kaulitz as Fireworks

  • 19

    Halsey as Cher

  • 20

    Demi Lovato as Marie Antoinette

  • 21

    BiP Couple Caelynn Miller-Keyes and Dean Unglert as Each Other

  • 22

    The Cast of Black-ish as the Us Family

  • 23

    Lisa Rinna as Jennifer Lopez

  • 24

    Vanessa Morgan as Maleficent

  • 25

    Gus Kenworthy as a Skeleton

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