Here are 24 jaw-dropping looks we saw celebrities wearing this spooky season.

1. Kelsea Ballerini went as Barbie

American country singer Kelsea Ballerini dressing up as Barbie. Photo: @kelseaballerini/Instagram

Ballerini dressed up as Margot Robbie’s version of Barbie from this year’s biggest box-office hit, Barbie.

2. Victoria Justice channelled Cher

Actress and singer Victoria Justice wearing Cher’s outfit in her music video “If I Could Turn Back Time”. Photo: Getty Images

Victoria Justice channelled Cher from the “If I Could Turn Back Time” music video at the annual Casamigos Halloween party on Friday.

3. Paris Hilton recreated Britney Spears’ “Toxic” look

Paris Hilton rocking Britney Spears’ flight attendant look in the “Toxic” music video. Photo: @parishilton/Instagram

The Hilton heiress recreated Britney Spears’ flight attendant look in the “Toxic” music video for the annual Casamigos Halloween party on Friday.

5 shock Justin Timberlake revelations from Britney Spears’ The Woman In Me

4. … then she dressed up as Katy Perry

Paris Hilton recreating a look from Katy Perry’s Las Vegas residency “Play”. Photo: @parishilton/Instagram

The next day, she arrived to Vas Morgan and Michael Braun’s Halloween party dressed up as Katy Perry from her Las Vegas residency “Play”.

5 & 6. Megan Fox and Machine Gun Kelly took shots at the Sag-Aftra strikes with their costumes

Megan Fox and Machine Gun Kelly dressing up as characters from struck work. Photo: @meganfox/Instagram
The couple dressed up as Gogo Yubari and The Bride from Kill Bill, apparently taking shots at Sag-Aftra’s rule against members dressing up as characters from struck work.

7. Demi Lovato was Snow White, a Disney princess

Demi Lovato slaying as Disney’s Snow White. Photo: @ddlovato/Instagram

The singer wore a more low-cut version of Snow White’s famous dress to Vas Morgan and Michael Braun’s Halloween party on Saturday.

8. Kate Beckinsale channelled space traveller Barbarella

Actress Kate Beckinsale wearing Jane Fonda’s character’s costume from Barbarella. Photo: @katebeckinsale/Instagram
Kate Beckinsale arrived to Vas Morgan and Michael Braun’s Halloween party dressed as the titular character from the 1960s cult classic Barbarella, originally played by Jane Fonda.

Spooky season! 10 times Asian stars won Halloween with iconic costumes

9 & 10. Halsey and Avan Jogia were ethereal with their fairy tale costumes

Halsey and Avan Jogia wearing costumes inspired by the ocean. Photo: @iamhalsey/Instagram

Halsey bared her abs in this siren costume. Her partner, Avan Jogia, wore a pirate costume to Vas Morgan and Michael Braun’s Halloween party.

11, 12 & 13. Chelsea Lazkani, Emma Hernan and Chrishell Stause of Selling Sunset had playful costumes this year

The cast of Selling Sunset having fun with their costumes. Photo: @emmahernan/Instagram

The reality TV trio dressed as the components of the popular game F***, Marry, Kill.

14. Chelsea Lazkani dressed as one of Batman’s most famous villains

Reality TV star Chelsea Lazkani dressing up as fictional character Poison Ivy from Batman. Photo: Getty Images

At Vas Morgan and Michael Braun’s Halloween party, Lazkani was dressed as Poison Ivy – one of Batman’s most famous villains.

15. Alessandra Ambrosio flaunted her figure in this costume

Brazilian model Alessandra Ambrosio in her daring Halloween costume. Photo: @alessandraambrosio/Instagram

Brazilian model Ambrosio was a “gold goddess”, reminiscent of her Victoria’s Secret Angel days.

Forget vampires or witches – get ready for a Barbiecore Halloween this month

16. Sabrina Carpenter was a Tangled-inspired Rapunzel

Sabrina Carpenter wearing a Rapunzel-inspired costume. Photo: Getty Images

When she posted about her costume on TikTok, she used an audio of Rapunzel in Tangled and called herself a “vague ambiguous long-haired princess”.

17 & 18. Justin and Hailey Bieber channelled The Flintstones for spooky season

Justin and Hailey Bieber attending a party as characters from The Flintstones. Photo: Getty Images

The Biebers attended a party dressed as Bamm-Bamm Rubble and Pebbles Flintstone from The Flintstones.

19. Charlotte McKinney brought back the cult classic Pulp Fiction with her costume

Actress Charlotte McKinney channelling Mia Wallace from Pulp Fiction. Photo: Getty Images

The actress channelled Mia Wallace from Pulp Fiction as played by Uma Thurman.

20 & 21. Scarlett Leithold and Josie Canseco went as Chucky and Tiffany

Models Josie Canseco and Scarlett Leithold doing their best Chucky impressions. Photo: Getty Images

Josie Canseco and her friend Scarlett Leithold did their best Chucky and Bride of Chucky impressions for a party.

Olivia Rodrigo’s luxury designer style, from Y2K to Barbiecore

22. Casey Affleck’s girlfriend, model Caylee Cowan dressed as a cave-woman

Casey Affleck’s girlfriend Caylee Cowan wearing a daring cave-woman outfit. Photo: @cayleecowan/Instagram

The model wore a micro miniskirt and bra top as part of her cave-woman costume.

23 & 24. April Love Geary and Robin Thicke were risqué with their costumes

April Love Geary and Robin Thicke turning up the heat with their Halloween costumes. Photo: Getty Images

The model wore a cowgirl costume, while her partner Robin Thicke opted for a silver suit with no shirt.

This article originally appeared on Insider.