See All of Your Favorite Fashion People's Halloween Costumes

Billie Eilish proved to be a popular inspiration.

Nina Dobrev as Billie Eilish at the 2019 Casamigos Halloween Party. Photo: Michael Kovac/Getty Images for Casamigos
Nina Dobrev as Billie Eilish at the 2019 Casamigos Halloween Party. Photo: Michael Kovac/Getty Images for Casamigos

Though Halloween doesn't officially arrive until Thursday, the weekend leading up to Oct. 31 was packed with festivities in celebration of the spooky holiday. Our favorite fashion people dressed up in their best and most over-the-top costumes, from Stormi Webster as Kylie Jenner at the 2019 Met Gala to Jessica Biel as *NSYNC-era Justin Timberlake — curly-haired wig and all.

Billie Eilish proved to be a popular inspiration this year, with Nina Dobrev donning the singer's signature bright green roots and Jameela Jamil wearing an Eilish-approved baggy ensemble as well. Elsewhere, celebrities concocted their own versions of other pop icons: Lisa Rinna recreated J.Lo's viral Versace look, and Kylie Jenner and and her best friend Anastasia "Stassie" Karanikolaou paid tribute to Britney Spears and Madonna at the 2003 MTV Music Video Awards.

Below, we've rounded up Halloween looks from the 2019 celebrations so far. Be sure to check back, as we'll be updating this post with more looks as they keep coming over the next few days.

Rande Gerber as a hippie and Cindy Crawford as a disco queen

Rande Gerber and Cindy Crawford at the 2019 Casamigos Halloween Party. Photo: Michael Kovac/Getty Images for Casamigos
Rande Gerber and Cindy Crawford at the 2019 Casamigos Halloween Party. Photo: Michael Kovac/Getty Images for Casamigos

Laverne Cox as a warrior

Laverne Cox at the 2019 Casamigos Halloween Party. Photo: Michael Kovac/Getty Images for Casamigos
Laverne Cox at the 2019 Casamigos Halloween Party. Photo: Michael Kovac/Getty Images for Casamigos

Amber Valletta as a '60s girl

Amber Valletta at the 2019 Casamigos Halloween Party. Photo: Michael Kovac/Getty Images for Casamigos
Amber Valletta at the 2019 Casamigos Halloween Party. Photo: Michael Kovac/Getty Images for Casamigos

Zoey Deutch as a hippie

Charlotte Dawes and Zoey Deutch at the 2019 Casamigos Halloween Party. Photo: Michael Kovac/Getty Images for Casamigos
Charlotte Dawes and Zoey Deutch at the 2019 Casamigos Halloween Party. Photo: Michael Kovac/Getty Images for Casamigos

Lisa Rinna as Jennifer Lopez in Versace

Lisa Rinna at the 2019 Casamigos Halloween Party. Photo: Kevin Mazur/Getty Images for Casamigos
Lisa Rinna at the 2019 Casamigos Halloween Party. Photo: Kevin Mazur/Getty Images for Casamigos

Paris Hilton as a saloon girl

Paris Hilton at the 2019 Casamigos Halloween Party. Photo by Kevin Mazur/Getty Images for Casamigos
Paris Hilton at the 2019 Casamigos Halloween Party. Photo by Kevin Mazur/Getty Images for Casamigos

Heidi Klum as an alien

<em>Heidi Klum at her Annual Halloween Party at Cathédrale. Photo: Gotham/Film Magic</em>
Heidi Klum at her Annual Halloween Party at Cathédrale. Photo: Gotham/Film Magic

Barbara Palvin and Dylan Sprouse as Princess Mononoke characters

Barbara Palvin and Dylan Sprouse at Heidi Klum's Annual Halloween Party at Cathédrale. Photo: Taylor Hill/Getty Images
Barbara Palvin and Dylan Sprouse at Heidi Klum's Annual Halloween Party at Cathédrale. Photo: Taylor Hill/Getty Images

Kevin Herrington and Antoni Porowski as Blockbusters zombies

Kevin Herrington and Antoni Porowski <em>at Heidi Klum's Annual Halloween Party at Cathédrale. Photo: Taylor Hill/Getty Images</em>
Kevin Herrington and Antoni Porowski at Heidi Klum's Annual Halloween Party at Cathédrale. Photo: Taylor Hill/Getty Images

Halima Aden as Maleficent

Halima Aden <em>at Heidi Klum's Annual Halloween Party at Cathédrale. Photo: Taylor Hill/Getty Images</em>
Halima Aden at Heidi Klum's Annual Halloween Party at Cathédrale. Photo: Taylor Hill/Getty Images

Duckie Thot as a dominatrix

Duckie Thot <em>at Heidi Klum's Annual Halloween Party at Cathédrale. Photo: Gotham/FilmMagic</em>
Duckie Thot at Heidi Klum's Annual Halloween Party at Cathédrale. Photo: Gotham/FilmMagic

Jonathan Van Ness as a bloody cat

Jonathan Van Ness <em>at Heidi Klum's Annual Halloween Party at Cathédrale. Photo: Taylor Hill/Getty Images</em>
Jonathan Van Ness at Heidi Klum's Annual Halloween Party at Cathédrale. Photo: Taylor Hill/Getty Images

Neil Patrick Harris and David Burtka as Mary-Kate and Ashley Olsen

Neil Patrick Harris and David Burtka as Mary-Kate and Ashley Olsen <em>at Heidi Klum's Annual Halloween Party at Cathédrale. Photo: Taylor Hill/Getty Images</em>
Neil Patrick Harris and David Burtka as Mary-Kate and Ashley Olsen at Heidi Klum's Annual Halloween Party at Cathédrale. Photo: Taylor Hill/Getty Images

Ashley Graham as Jessica Rabbit

Nina Dobrev as the Chanel catwalk crasher

Camila Mendes as "Sexy Rick"

Georgia Fowler as Maleficent

Josephine Skiver as a bee

Jasmine Tookes as a Pirate

Kylie Jenner and Anastasia "Stassie" Karanikolaou as Britney Spears Madonna at the 2003 MTV Music Video Awards

Kylie Jenner as Ariel

Stormi Webster as Kylie Jenner's custom Met Gala look

Jessica Biel as *NSYNC-era Justin Timberlake

Kate Beckinsale as Holly Golightly

Aurora James as Catwoman

Bella Thorne as a '70s disco queen

Jameela Jamil as Silly Eilish 

Nina Dobrev as Billie Eilish

Emma Chamberlain as Paris Hilton

Normani as Naomi Campbell

Normani as Cher

Ciara and Russell Wilson as Beyoncé and Jay-Z

Kim Kardashian as Elle Woods

Khloe Kardashian as Cruella de Vil

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