The hostess led a pack of pal dressed in white corset gowns and feather hair pieces, giving off some Old West vibes.
“It’s time to party! Before we put the phones away we want to thank @absolutelyx for sponsoring us this year #elyx #skål #LetsDoThis,” Hudson, 37, said in an Instagram post.
Jessica Alba and her BFF Kelly Sawyer tag-teamed as the British sitcom duo Patsy and Edina from Absolutely Fabulous.
“#ABFAB w my boo @kellysawyer #patsyandedina #bff #Halloween,” Alba, 35, captioned a Boomerang of the pair raising a bottle of champagne before the festivities.
Nicole Richie was ready to put on a show as she donned a flashy, bow-tied number as part of a Siegfried and Roy trio — complete with a white tiger.
“Happy Halloween from Siegfried & Roy,” the star wrote on Instagram.
Tobey Maguire and Leonardo DiCaprio party-hopped from the annual Casamigos Halloween bash to Hudson’s celebration. And while DiCaprio was nearly unrecognizable in a werewolf mask, Maguire kept it simple with a black shirt and L.A. Dodgers hat.
Perry documented much of the transformation on Instagram, telling her fans, “I don’t play games on Halloween.”
Kendall Jenner shared several photos from her night out, including a spooky one showing off her low-cut black leather look. She captioned the photo, “stranger things.”
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Hudson’s ex Matt Bellamy and his girlfriend Elle Evans were Grease-gone-wrong, as they opted for a zombie version of Danny and Sandy from the hit musical. The leather-clad couple powdered their faces and Bellamy had some fake blood coming out of his mouth as they made their entrance.
One duo looking more alive was Salma Hayek and her husband Francois-Henri Pinault. The two were spotted giggling as they left Hudson’s party. They didn’t go so far as prosthetics for the annual get-together, as Hayek wore a red dress and her husband sported a white button down shirt and navy suit.