Halloween 2023: Mariah Carey, Austin Butler, Kourtney Kardashian & More Stars’ Costumes

It's a haunting Hollywood Halloween for A-listers who are doing it up with their spooky styles! Pregnant Kourtney Kardashian kicked off the festivities by recreating her sister Kim's iconic pregnancy style from the 2013 Met Gala over the weekend. And later she and her husband, Travis Barker, channeled Beetlejuice and Lydia at their wedding. Kim posted a sweet video with her daughter, North West, where the duo was dressed as Cher and Dionne from "Clueless." Paris Hilton paid tribute to two iconic singers for her on-point looks, dressing as Katy Perry and Britney Spears. Austin Butler and Kaia Gerber were Edie Sedgwick and Andy Warhol as they posed alongside her family at the Casamigos party on Oct. 27. Kaley Cuoco posted a series of adorable pics of her daughter, Matilda, celebrating her first Halloween while Mariah Carey dressed up as Jessica Rabbit and teased her plans to ring in the holiday season soon.