Kate Hudson [1] held her annual Halloween [2] bash at her home in LA on Friday night, and as usual, the event brought out her family members and famous friends. Katy Perry [3], Jessica Alba [4], and James Corden all arrived in costume, while the belle of the ball herself was decked out as a lady of the Wild West.

Kate gave fans a sneak peek at her party planning via Snapchat on Thursday. While hanging with her newly single pal Jennifer Meyer [5], Kate walked viewers through the setup of her house and shared the recipe for the night's signature cocktail [6], a bloody cosmo. She also shared photos from the bash on Instagram, captioning one of herself and a friend [7], "Wild West got us like 💃@jonastahlin #SeeYouOnTheOtherSide."

Katy Perry, Orlando Bloom, and a Friend as Hillary Clinton, Donald Trump, and Bill Clinton

Jessica Alba and a Friend as Eddy and Patsy From Absolutely Fabulous

James Corden as an Astronaut

Judd Apatow and Leslie Mann as a Baseball Player and Roller Derby Skater

Adam Sandler as a Pizza Chef

Kendall Jenner as a Gothic Girl

Molly Sims as a Fortune Teller

Johnny Knoxville as an Army Captain

Suki Waterhouse