It’s Halloween and celebrities are showing off their scariest, silliest, and cleverest costumes.

Kerry Washington transformed into Zendaya’s character from the movie “Challengers,” former tennis pro Tashi Donaldson, wearing Tashi’s famous “I Told Ya” shirt from the movie. She also enlisted former “Scandal” co-stars Tony Goldwyn and Scott Foley, who wore tennis attire.

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

“Challengers accepted,” she captioned the cute photo.

Demi Moore also shocked fans this week by 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 footage from her film “The Substance,” in which she plays a former A-lister named Elisabeth who is drawn to a mysterious black market drug that promises to temporarily age her.

“I’ve been holding these gems from @trythesubstance and today feels like an appropriate day to share them. Happy Halloween from Elisabeth Sparkle,” Moore captioned the wild photos.

Ahead, check out even more eye-catching celebrity costumes that made us stop and stare.

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’ stars Angie Katsanevas and Wolverine

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

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