Halloween 2024: Best celebrity looks from Gwen Stefani, Courteney Cox and more

Another Halloween has come and gone, so it's time to reflect on the scariest, silliest and smartest costumes from your favorite celebrities.

Kerry Washington transformed into Zendaya's character from the movie "Challengers," former tennis pro Tashi Donaldson, wearing Tashi's famed "I Told Ya" shirt from the film. She also enlisted former "Scandal" co-stars Tony Goldwyn and Scott Foley, who wore tennis gear.

Washington posted an Instagram photo of the trio posing together on Thursday, mirroring the love triangles in both "Challengers" and "Scandal."

"Challengers Accepted," she captioned the fun photo.

Demi Moore also shocked fans this week, posting an unrecognizable photo of herself in costume as a much-older woman with a bald head and glasses.

According to Moore, the photos were behind-the-scenes snaps from her film "The Substance," in which she plays a former A-lister named Elisabeth Sparkle who is drawn to a mysterious black market drug that promises a younger and more perfect version of herself -- with caveats.

"Been holding onto these gems from @trythesubstance and today feels like an appropriate day to share them. Happy Halloween from Elisabeth Sparkle," Moore captioned the wild photos.

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Just ahead, check out more standout celebrity costumes that made us stop and stare.

Gwen Stefani as Snow White

Macaulay Culkin as NFL star Joe Burrow

Lupita Nyong'o as Storm from the X-Men

Courteney Cox as Gale Weathers from 'Scream 3'

Kendall Jenner and Kylie Jenner as Lizzie McGuire and Isabella from 'The Lizzie McGuire Movie'

Kourtney Kardashian and Travis Barker as Morticia and Gomez Addams

Jesse Tyler Ferguson and Justin Mikita as Abraham Lincoln and Mary Todd Lincoln

Sabrina Carpenter recreates Lizzie McGuire's iconic igloo dress from 'The Lizzie McGuire Movie'

Charli D'Amelio as Nina/the Black Swan from 'Black Swan'

Jennifer Garner as Jenna Rink from '13 Going on 30'

Ed Sheeran as an AI-generated meme

Zooey Deschanel and Jonathan Scott as 'The Real Housewives of Salt Lake City' star Angie Katsanevas and Wolverine

Bindi Irwin, Chandler Powell and daughter Grace as a giraffe and zookeepers

Olivia Culpo and Christian McCaffrey as Dorothy and the Tin Man from 'The Wizard of Oz'