All the Best Celebrity Halloween Costumes of 2023

Megan Thee Stallion

Everyone's no. 1 hot girl coach traded in her usual wardrobe of barely-there stage costumes for a Halloween getup that may just be one of our favorites, ever. Megan Thee Stallion (née Megan Pete) hosted her own party dressed as one of the not-so-friendly flowers from Alice in Wonderland.

Renée Rapp

If anyone knows whether or not blondes have more fun, it's Pamela Anderson, one of the most iconic blondes of all time. That could be why Renée Rapp chose the Baywatch babe as her costume, throwing it way back to one of Anderson's most iconic looks.

Kelsea Ballerini

Before Halloweekend even kicked off, Keslea Ballerini put on her best Barbie 'fit to celebrate with The Original Donut Shop Coffee at NYC's Beauty & Essex.

Megan Fox and Machine Gun Kelly

Megan Fox and MGK didn't just have one costume this weekend. Attending Vas Morgan and Michael Braun's Halloween Party, the pair slipped into some sinister-looking costumes that pulled inspo from the beloved anime Death Note.

Megan Fox and Machine Gun Kelly

Even though the actors strike outlined that stars shouldn't dress up as anything that could be considered promoting a film project, Megan Fox and Machine Gun Kelly paid homage to Quentin Tarantino's 2003 movie, Kill Bill: Volume 1  to the annual Casamigos Halloween Party. Fox even tagged the Screen Actors Guild on her Instagram post.

Paris Hilton

The Annual Casamigos Halloween Party didn't have just one Britney, it had three. Paris Hilton opted for one of the superstar singer's most iconic looks from the music video for "Toxic."

Jessica Alba

Model Kelly Sawyer Patricof opted for Brit's breakout look from "... Baby One More Time" and like Paris, her friend Jessica Alba also channeled "Toxic."

Rande Gerber and Cindy Crawford

Rande Gerber and Cindy Crawford are the ones that we want. The duo wore costumes from the classic film Grease.

Finneas and Justin Bieber

Finneas and Justin Bieber were also in attendance at the Casamigos party.

Austin Butler and Kaia Gerber

It couple Austin Butler and Kaia Gerber attended Cindy and Rande's party, too, giving a bit of a '60 Pop Art twist to Halloween.

Demi Lovato

Once a Disney star, always a Disney star. Demi Lovato arrived at Vas Morgan and Michael Braun's Halloween Party dressed as Snow White.

Justin Bieber and Hailey Bieber

Justin Bieber and Hailey Bieber, on the other hand, took a detour to Bedrock with their Flintstones looks.

Kourtney Kardashian Barker and Travis Barker

Beetlejuice, Beetlejuice, Beetlejuice. Kourtney Kardashian Barker and Travis Barker dressed up as everyone's favorite Tim Burton couple.

"I’m the ghost with the most, babe," she captioned the shots.

Vanessa Hudgens and Cole Tucker

Vanessa Hudgens, the reigning Queen of Halloween, and her fiancé Cole Tucker leaned into the Catherine Zeta-Jones and Antonio Banderas classic Zorro for their couples costume.

Mariah Carey

Don't let Mariah Carey's penchant for Christmas make you think she's not into Halloween. The diva of divas dressed as Jessica Rabbit this year, upping the va-va-voom with a red wig and the character's signature plunging gown.

Kendall Jenner

Kendall Jenner chose a lesser-known Marilyn Monroe (no white dress here) look for this year's costume. She captioned her post, "happy birthday mister president."

Christina Aguilera

Christina Aguilera didn't just dress up as Cher, she dressed up as Cher, her co-star from the cult-classic Burlesque. Xtina first teased the look on Instagram, where she captioned a clip "Tess & Ali 4EVER."