It's that time of year when even Hollywood stars want to be someone else – and many of them put on makeup and costumes for Halloween week!

Since Halloween is on Thursday this year, many celebs have decided to dress up in their scariest, silliest, and sexiest costumes this weekend… like this Selena Gomez And Benny Blancohe went down the rabbit hole with their “Alice in Wonderland” costumes.

Sophie Turner And Ice seasoning wore outfits inspired by '90s films… with Sophie looking like Trinity from The Matrix and Spice dressed as Leeloo in The Fifth Element.

As we told you, Lizzo I fully embraced the jokes made about her in South Park crushes it as an Ozempic alternative that bears her name – with an inflatable Cartman right by her side.

Mike Sorrentino, JWoww, Sammi darling And Zack Clayton met up for a little Jersey Shore mini-hang…and the group all looked downright ugly in their eclectic costumes.

Anne Hathaway embraced the Big Apple with her costume…disguised with a Statue of Liberty headpiece and a “Boo York City” t-shirt that just screams, “There's a zombie walking here!”

Amber rose, Chrissy Teigen, Kelly Osbourne, Mario, Bretman Rock, Casey Boonstra, Jenn Tran, Adelaine Morin, Kimiko Glenn, Paige Spiranac, Bella Poarch and many more took part in the celebrations with their ensembles.

Halloween always brings out celeb creativity… Just look at last year's costumes — and remember, there'll probably be a few more treats before the actual holiday on Thursday.