Hollywood celebrated Halloween in a spectacularly over-the-top fashion on Sunday.
Olivia Wilde danced around and showed off her fake boobs as she transformed into country icon Dolly Parton.
When dressed up as the I Will Always Love You singer, Olivia took to the gym with a glass of wine in hand, joking: ‘In my mind this is how she works out.’
Ready to work 9 to 5! Olivia Wilde shows off her fake boobs while channeling Dolly Parton… as Hollywood celebrates Halloween on Sunday
Another eye-catching transformation was Kendall Jenner as the Martian Girl from Tim Burton’s warped sci-fi film Mars Attacks.
Played by Burton’s then-girlfriend Lisa Marie, the character is standout from the movie despite never having any lines of dialogue.
‘Mars Attacks! happy halloweeeeeen,’ Kendall wrote alongside the series of pictures.
Going for it: The actress then took to the treadmill while in fancy dress
Commitment: The actress showed off her ‘Dolly boobs’ while getting ready for Halloween
Funny: Wilde appeared to be giggly as she posed in the video
Tipple: She also claimed that she fell over shortly after this picture was taken
Elsewhere in Hollywood over the weekend, celebrities tried to get inventive with this year’s costume options.
Jumping on a hot Netflix trend – Rebel Wilson and her pals did their best Squid Games look as they partied with Paris Hilton the night before.
Lili Reinhart went for the classic option of being a witch, and captioned her post: ‘Celebrating all my fellow witches today.’
Wow: Another eye-catching transformation was Kendall Jenner as the Martian Girl from Tim Burton’s warped sci-fi film Mars Attacks
Classic: Played by Burton’s then-girlfriend Lisa Marie, the character is standout from the movie despite never having any lines of dialogue
‘Mars Attacks! happy halloweeeeeen,’ Kendall wrote alongside the series of picture
She’s got the moves: Kendall certainly nailed the poise of the original character
A-listers: Kendall was joined by pals Hailey Bieber, Justine Skye and Lauren Perez
Going out: The model continued to take her costume into the night as she posted photos on a party bus with friends Hailey and Justin Bieber
Out on the town: Justin Bieber headed out with the group in style and sipped on 818 Tequila
French maid? Hailey looked to dress as a sexy french maid for the evening
Halloween party: The niece of Alec Baldwin and her BFF Justine showed off their costumes while heading out in Los Angeles with their friend group
Kourtney Kardashian and Travis Barker have dressed up as Clarence and Alabama from Quentin Tarantino’s 1993 movie True Romance.
Taking on the roles of Clarence (Christian Slater) and Alabama (Patricia Arquette) – Kourtney, 42, and Travis, 43, looked every inch the cool couple for Halloween.
The romantic crime drama written by Quentin Tarantino and directed by Tony Scott has long been a favourite for fancy dress ideas around the holiday.
Cult classic: Kourtney Kardashian and Travis Barker have dressed up as Clarence and Alabama from Quentin Tarantino’s 1993 movie True Romance
Going all in: Kourtney donned a blonde wig to play Arquette’s call girl character Alabama, while Travis covered up his tattoos and wore a wig to play Christian Slater
Picture perfect: The couple even posted film poster-like images for the holiday
True romance: In other images she was seen sliding into the vintage convertible to steal a kiss from Barker
Leaning in: She had captioned the series with a long quote from the movie that included the phrase ‘you’re so cool’
Top down: The movie has become a sort of symbol for the pair and Travis even got the words ‘you’re so cool’ in Kourtney’s handwriting tattooed on his hip
Kylie Jenner seemed to enjoy a lowkey Halloween hang with three-year-old Stormi and beau Travis Scott at Kim Kardashian’s house.
She showed off her growing belly in a black catsuit and completed the look with face paint and a set of ears, while Kris Jenner matched her look.
Stormi dressed as an adorable Ariel from the Little Mermaid and the rapper went as Michael Meyers from the Halloween franchise.
Halloween: Kylie Jenner dressed as a simple black cat while celebrating the holiday with beau Travis Scott and daughter Stormi, three at sister Kim Kardashian’s Halloween celebration
Mom mode: ‘In full mommy mode this halloween i hope everyone has a safe night,’ she captioned a post with images of their family-filled day
Twinning: Kylie and Kris Jenner both twinned as black cats and an image posted showed off her growing baby bump from the side
Little mermaid: While Kylie channeled a cat, Travis dressed as Michael Myers from the Halloween franchise while Stormi went as Ariel for a celebration at Kim Kardashian’s house
Daddy’s girl: The Houston born rapper cradled his little princess in his arms in another snap
Thriving: A source told People this week that Kylie and Travis ‘are doing great’ as evident in their sweet Halloween snaps as a family unit
Tender touch: The two looked stronger than ever as he lovingly wrapped his arms around her from the back as they walked
Cat-itude: kylie Jenner showed off her growing belly in a black catsuit and completed the black cat costume with face paint and a set of ears
Growing! Her pregnant belly was on full display in the look and she carried a Judith Leiber bag
Little mermaid: Stormi seemed to go as a mermaid for the day
Halloween at home: Khloe Kardashian also went the cat route for the holiday at home as she revealed this week that she is battling a COVID-19 breakthrough case despite being vaccinated
Sister Khloe Kardashian also went the cat route for the holiday at home as she revealed this week that she is battling a COVID-19 breakthrough case despite being vaccinated.
And Kim Kardashian did not reveal anything about a Halloween costume until late Sunday evening as she showed off a metallic space cowgirl type of costume.
She also posted images of her kids North, Saint, Chicago and Psalm, in their costumes for the day each one showing off their unique personality and interests in their looks.
Space cowgirl! Kim Kardashian did not reveal anything about a Halloween costume until late Sunday evening as she showed off a metallic space cowgirl type of costume
Glam: Additionally the billionaire reality star showed off her expertly done makeup
Busty: The SKIMS founder’s sexy look included a metallic silver bra and a matching shiny hat
Personality pics! Daughter Chicago looked to channel a witch for the day while Psalm was a truck driver
Serial killers: Eldest daughter North dressed up with her friends in dramatic colored wigs with gothic makeup and carried prop guns while wearing sky high platforms
Roblox: Kim’s eldest son Saint went as a Roblox character
Cat woman: Kris Jenner wore Fendi Skims to dress as a cat for the day
Rebel Wilson tackled Squid Game with pals including Paris Hilton who went as a princess.
She partied alongside the likes of Emma Roberts, Anna Kendrick, Taika Waititi and Demi Lovato at a Hollywood bash.
Taylor Swift dressed up as a squirrel for the day as she joked ‘can’t talk now I’m on my hot squirrel s**t.’
Orlando Bloom and Katy Perry dressed as a COVID-19 vaccine and a doctor.
Squid Game: Rebel Wilson attended a star-studded Hollywood bash with the likes of Taika Waititi, Demi Lovato, and Emma Roberts
Topical: Rebel and her pals did their version of Squid Games as they posed with Paris Hilton
PDA: At one point she was seen getting a pretend neck bite from someone
Hot squirrel s**t: Taylor Swift dressed up as a squirrel for the day as she joked ‘can’t talk now I’m on my hot squirrel s**t’
Going nuts: The oversized costume matched the squirrel’s markings and had a giant head with buck teeth
Vaccine jokes: Orlando Bloom and Katy Perry dressed as a COVID-19 vaccine and a doctor
Baby Yoda: Vanessa Hudgens and her boyfriend Cole Tucker attended the Outsidelands music festival in San Francisco and went as Baby Yoda
Smooches: The actress and her MLB beau engaged in some sweet PDA
In Bloom’s caption he joked ‘I vaxxed a girl and I like it,’ a play on Perry’s song I Kissed A Girl.
In a more sentimental posting, Jamie Lee Curtis shared an adorable throwback image of herself as a small child, explaining that her costume was ‘a little Dutch girl.’
‘Can’t wait to see what people will wear this year,’ Jamie wrote. ‘Love and misses to my mother, the OG SCREAM QUEEN, Janet Leigh!’
She was of course referring to her mother Janet Leigh who starred in Alfred Hitchcock’s classic horror Psycho.
Recognise them? Sarah Michelle Gellar and husband Freddie Prinze Jr. do Dirty Dancing
Nobody puts Buffy in the corner: The star and her husband recreated an iconic scene from the classic film
Goofing around: The married couple did their best to recreate the seen
Witchy: Riverdale star Lili Reinhart dressed up as a witch for Halloween
Huh? Joe Jonas and wife Sophie Turner looked liked bloodied burglars for the night
Ferocious feline! Sofia Vergara went as a tiger
Movie magic: January Jones went as Angelica Graynamore from the film Joe Versus The Volcano
Jamie recently dressed as her mother when appearing at the premiere for her latest movie Halloween Kills.
Sarah Michelle Gellar recreated an iconic scene from Dirty Dancing at home with husband Freddie Prinze Jr.
‘Nobody puts baby in the corner #happyhalloween from Baby Houseman and Johnny Castle #dirtydancing #loverboy,’ she captioned the photo.
Looking for Gomez: This year, Cardi B got dressed up as Morticia Addams
Revealing: The rapper certainly put a racy spin on the Addams Family matriarch
Gotchi couture: Cardi’s gown was designed by Natalia Fedner
Matching: Cardi also did a mommy-daughter costume with Kulture as they went as witches for the day
Spellbound: ‘We put a spell on you and now you’re ours!’ she captioned the photos
Sassy: The three-year-old daughter she shares with Offset showed off her personality
Closeup: A closeup look at the black velour gown and accessories can be seen
Rick James: Cardi’s rapper husband Offset went as Rick James for Halloween
Nailed it: His Rick James costume seemed to move Cardi to hysterics as she reposted the video with emojis
Cardi B opted for Morticia Addams from The Addams Family, wearing a dress by Natalia Fedner.
The rapper struck a number of sultry poses in the elegant all-black gown while holding a red rose.
The see-through mesh material showed off Cardi’s famous curves as she got into character.
She additionally did a mommy-daughter costume with Kulture as they went as witches for the day.
Elaborate: Ariana Grande, 28, went all out for her Halloween costume this year
Incognito: The petite songstress was unrecognizable in green body paint and prosthetics as she portrayed the monster from the 1954 horror film Creature from the Black Lagoon
Playful: Taking to a body of water, the imaginative star made a splash for the promo shot, and in another snap she sipped from a glass of wine
Helping hand: Helping out with the festive effort was the singer’s husband Dalton Gomez, 26, whom she enlisted in the role of ‘handsome scuba man’
Meanwhile, Ariana Grande, 28, went all out for her Halloween costume this year.
The petite songstress was unrecognizable in green body paint and prosthetics as she portrayed the monster from the 1954 horror film Creature from the Black Lagoon.
Helping out with the festive effort was the singer’s husband Dalton Gomez, 26, whom she enlisted in the role of ‘handsome scuba man.’
‘Be safe everyone’: Jamie Lee Curtis posted a heartfelt message for Halloween looking back on her childhood
Horror icons: Jamie also posted this picture with her mother, Psycho star Janet Leigh
Madonna: For the day Madonna showed off a very black costume and shielded her face with the caption ‘nowhere is safe’
Queen of Halloween: Heidi Klum went as a sexy cat with elaborate makeup and a pink wig
Feeling herself: The German supermodel danced around in furry boots and her skimpy costume
Throwback: Klum also posted a photo of her as a teen pulling her eyes in a scary way
Ashley Tisdale twinned with her daughter Jupiter and both dressed like characters from the children’s book Where the Wild Things Are.
The High School Musical actress wore a pink and red striped long sleeve sweater while she held her baby girl Jupiter who wore a onesie and a silver crown much like the lead character Max.
And Rihanna dressed up as rapper Gunna as she shared side by side photos with the rapper as a reference point.
Andy Cohen and his son Benjamin went trick or treating dressed as astronauts, while Pink and husband Carey Hart dressed up with their children as a family.
Getting in character: Rihanna dressed up as rapper Gunna as she shared side by side photos with the rapper as a reference point
Same energy: Rihanna nailed the rapper Gunna (pictured above) and his look with identical wardrobe and braids
Fun and games: The Savage x Fenty mogul recreated a series of images the Drip Too Hard rapper posted recently
A wild mother: Ashley Tisdale and her daughter dressed as characters from Where the Wild Things Are
Beautiful baby: Tisdale’s baby was dressed as the main character Max from the book
Trick or treat! Andy Cohen and his son Benjamin went as astronauts
Candy hunt: The father son duo walked hand in hand for some trick or treating in the West Village
Ghostbusters! Nick Cannon and his girlfriend Abby De La Rosa went as Ghostbusters
Newborns: Also dressed up like their parents were their newborn twin boys Zion and Zillion
Another snap: The couple really got into Ghostbusting character in matching suits like those worn in the classic film
Duck duck goose! Mandy Moore’s son August ‘Gus’ dressed up as a goose
Family costume: Pink, her husband Carey Hart and their two children did a family costume
Spooky vibes: Pink used a filter that created a smokey effect as she sipped a cocktail
Comedian Amy Schumer went in a bit of a different direction with her costume, choosing to be a Tampax tampon instead.
She captioned the photo, ‘Nothing will stop me from wearing,’ and in it she joked about her hysterectomy saying, ‘I don’t have a uterus, but nothing will stop me from wearing Tampax.’
Power couple Shawn Mendes and Camila Cabello dressed in traditional Dia de los Muertos close.
Coco Austin and husband Ice-T went all out for a bash as well as they dressed as Harley Quinn and The Joker.
Joking around: In an Instagram video she posted Amy Schumer joked about her hysterectomy saying, ‘I don’t have a uterus, but nothing will stop me from wearing Tampax’
Another important day: Camila Cabello and Shawn Mendes dressed in traditional clothes of Dia de Los Muertos
All out: The couple went all out with their hair, makeup and costumes
Joking around! Coco Austin and husband Ice-T went all out for a bash as well as they dressed as Harley Quinn and The Joker
Party time: The couple attended a themed party on Saturday evening
Sexy: The model’s killer curves were on display as well as her enhanced chest
Villainous: Both looked to pull off the Suicide Squad couple’s costume and used props
Goodfellas! Olivia Rodrigo went as Michelle Pfeiffer’s character in Goodfellas Elvira Hancock
Nailed it: The Drivers License singer sported a silky blue dress and a blonde bob
Olivia Rodrigo went as Michelle Pfeiffer’s character in Goodfellas Elvira Hancock complete with silky blue dress and blonde bob wig.
Chrissy Teigen’s mom Pepper dressed as Kris Jenner for Halloween, and the final product was hilarious complete with a Kylie lipkit in hand.
Lupita Nyong’o dressed up as a banana while Heather Graham channeled a Day Of The Dead look with a skeleton onesie and a floral headpiece.
Others including Eiza Gonzalez and Christina Haack did not dress up but shared glimpses of their day.
Doing a double take: Chrissy Teigen’s mom Pepper dressed as Kris Jenner
Careful! Pepper took a risk by impersonating the Kardashian matriarch while holding a Kylie makeup product
Last minute! Riley Keough confessed to throwing together a ‘last minute hocus pocus’ costume
A-peeling! Lupita Nyong’o dressed up in a banana suit
Humorous: The Twelve Years A Slave star chose to go a humorous route for the holiday
Themed: Mindy Kaling showed off a sweater with ghosts and drew cobwebs under her eyes
Dia De Los Muertos: Heather Graham was seen in a skeleton catsuit with pink flowers on her head
Dog costumes: Graham posted two snaps of her dogs in full costume
Baby shark: Heather’s other dog was seen in a shark costume
Playing around: Eiza Gonzalez played around with a devil filter as she wished her followers a Happy Halloween
Lowkey: Christina Haack also posted a photo with her fiance Josh Hall and young son Hudson
Festive: Lupita had showed off her expert pumpkin carving skills earlier