Halloween celebrations have begun and celebrities are sharing their costumes on social media.

Here's a list of stars who flaunted their Halloween costumes on Instagram:

Halle Bailey

Singer Halle Bailey, who made headlines for bagging the role of Ariel in the upcoming movie "The Little Mermaid," shared an Avatar-themed Halloween costume. The 22-year-old said she "always wanted to [be] an avatar." She will be the first Black actress to play the mermaid.

Kerry Washington

The 45-year-old actress dressed as legendary singer Lionel Richie this Halloween. She shared a video of herself dancing and lip-synching to "You Are," which was officially dropped in 1983.

Diddy

Rapper Sean Combs, who is popularly known as Diddy, donned the iconic Joker look from the 2008 movie "The Dark Knight."

Kylie Jenner

The 25-year-old TV personality wore Cassandra Peterson's outfit from the popular 1988 horror comedy "Elvira: Mistress of the Dark."

Keke Palmer

The 29-year-old turned into Rapunzel this Halloween. The actress noted that she chose the look as per fans' demand. Along with a set of photos, she also shared a text that showed a fan's message: "I want Keke Palmer to play live action Rapunzel with 100ft box braids."

"You ask, so you shall receive," she captioned the post.

Kendall Jenner

The 26-year-old model and TV personality posed as Jessie from the popular franchise "Toy Story." Jenner captioned, "Well aren't you just the sweetest space toy."

Paris Hilton

The 41-year-old TV personality can be seen posing as Japanese anime character Sailor Moon. Her husband, author Carter Reum, donned another anime character, Tuxedo Mask.

Vanessa Hudgens

Hudgens looked stunning as she donned a black feather outfit at a thriller night Halloween party last week and shared it on Instagram over the weekend.

Becky G

The 25-year-old singer donned Selma Hayek's look from the "Dusk Till Dawn" movie. The singer posed with soccer player Sebastian Lletget at Annual CARN*EVIL Halloween Party held in Los Angeles over the weekend.

Kim Kardashian

The mother of four posed as Mystique, alongside TV personality Olivia Pierson and actress Natalie Halcro, who wore Magik and Selene costumes respectively.

Kardashian wasn't the only one to choose the Mystique outfit for Halloween. Back in 2020, Saweetie also donned a similar costume. Fans couldn't help but compare their looks and discuss who wore it better.

X-Men Dark Phoenix
Jennifer Lawrence returns as Mystique in “X-Men: Dark Phoenix.” 20th Century Fox/Doane Gregory