Last weekend, AKA Halloweekend number one, we saw Halsey dress up as not one, but two music icons, Stormi Webster donning her mom's 2019 Met Gala look and Gabrielle Union revisiting her Bring It On cheer leading days. It doesn't get better than that, right?

Wrong. The celebs were only just getting started. Now that the holy day of spooky season has finally arrived, influencers, musicians and athletes are spamming Instagram with brand new get-ups, in preparation for a night full of tricks, treats, and A-list parties.

Check out Kim K's ode to the early 2000s, HAIM's version of another sibling-filled band, Lebron James's Tim Burton re-creation, and more, below. Note that Heidi Klum hasn't even revealed her biggest look yet — she gave fans a sneak peak earlier today.

Ariana Grande Went 'Twilight Zone'

Kylie Jenner did Marilyn, Ariel, and 'Playboy'

Kim Kardashian Was Elle Woods (Get it?)

Bella Went Fred Flintstone

Newlywed Nicki Minaj Was Bride of Chucky

HAIM Were Hanson

Ciara and Russell Wilson Were The Carters

Jennifer Garner Was a Mailbox, Then a Vampire?

LeBron James Was Edward Scissorhands

Tracee Ellis Ross Was Princess Jasmine

Megan Thee Stallion and Jordyn Woods Engaged in Some Mortal Kombat

Photo via Instagram

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Beauty

@BeautySpock Is Greta Gremlin

Photography by Silvia Draz / Styling by Craig Hemming and Caitlin Forbes