Halloween isn’t until Wednesday, but it seems like almost every star celebrated already! Whether they were scantily clad or covered up in a scary ensemble, these celebs partied hard this past weekend for the holiday.

Check out these celebrity Halloween costumes and let us know who looked great and who should have rethought their idea!

Couples Costumes

Kim Kardashian and Kanye West donned mermaid and sailor costumes, and while we can clearly tell that Matthew Rutler dressed up as a knight, we’re not quite sure what Christina Aguilera was going for. Ryan Seacrest and Julianne Hough pretended to be infamous crime duo Bonnie and Clyde, while Fergie and Josh Duhamel dressed up as Angelyne and Dennis Woodruff.

Sexy Costumes

Stacy Keibler wore a masquerade mask and a sexy black dress for her Halloween party hosting duties, while Kendra Wilkinson wore nothing but some body paint as her costume for the Playboy mansion party. Paris Hilton stepped out with her boyfriend for the Playboy party too, dressed as a fairy in as little clothing as she could. Meanwhile, Alessandra Ambrosio wore a sexy General costume complete with fishnets and stilettos.

Spooky Costumes

Scott Disick carried around an ax at his American Psycho­-themed Halloween party, while Hilary Duff wore a Day of the Dead costume with freaky full face paint. Shenae Grimes’s painted face was pretty scary too, especially with her blue contact lenses, and Lance Bass scared everyone with his clown getup.

Cute Costumes

Lucy Hale dressed up as a unicorn in a bright pink tutu and furry rainbow boots, which bared some similarities to Christina Milian’s frilly colorful cupcake costume. Darren Criss looked adorable dressed as a boy scout, while Lauren Conrad glammed up her Mary Poppins costume with a Chanel bag on her arm.