350+ Celebrity Halloween Costumes That Are Hilarious, Spooky, and Downright Stylish

Mel B was a leopard lady at a Halloween party in London in 2014.

Normani attended Beyoncé and JAY-Z's 2019 Halloween party dressed as Selena.

Kate Middleton went for a saucy costume out in London in 2007 years before she became the Duchess of Cambridge.

Rita Ora dressed as Post Malone for the KISS Haunted House Party in 2018.

Kim Kardashian attended a NYC bash as sexy Poison Ivy in 2011.

Rebel Wilson attended the Ellen Degeneres show in 2018 dressed as the volleyball from Cast Away.

Perrey Reeves posed for pictures as Catwoman at an LA party in 2014.

Jasmine was prepared to fight crime as the pink Power Ranger in 2019.

Robin Roberts dressed as Frozen's Elsa in NYC in 2014.

Lupita Nyong'o dressed as Dionne Davenport from Clueless for Heidi Klum's Halloween Party in 2018.

In 2018, Kelly Ripa dressed as Vicki the Robot from Small Wonder for Halloween.

Josh Hartnett got dirty for his 2005 Halloween festivities.

Lauren Conrad dressed as Minnie Mouse for a 2011 Halloween party in LA.

Adam Lambert dressed as a genie for an event benefiting the Gay Men's Chorus of LA in 2013.

Angel, Rachel, and AnnaLynne McCord stuck together at Pure Nightclub's party in Las Vegas in 2011.

In 2014, Guy Ritchie and Rocco Ritchie dressed up characters from Breaking Bad and Jacqui Ainsley stunned as the Black Swan.

Jason Priestley and his family posed in character at an LA event in 2008.

Elisabetta Canalis went all out as Dorothy from The Wizard of Oz and brought her own Toto along in LA in 2014.

In 2014, Adam Lambert threw a Halloween bash as Wolfman at Bootsy Bellows in LA.

Brooke Burke and David Charvet teamed up as Batman and Catwoman for an LA Halloween party with their kids in 2010.

Khloe Kardashian laid down the law for 2007's Pur Jeans Halloween bash.

Skylar Astin and Anna Camp dressed as Wayne and Garth from Wayne's World at Belle Midler's 2017 Halloween event in New York.

Miley Cyrus's mom, Tish, and sister Brandi arrived at a Halloween party at the Roosevelt Hotel in 2012.

In 2018, Jenna Dewan dressed as Cleopatra for Halloween.

In 2018, Val Chmerkovskiy and Jenna Johnson dressed as killer clowns for Halloween.

Lindsay Ellingson dressed up as Betty Draper in NYC in 2014.

Gavin Rossdale wore a Dracula costume to celebrate Halloween at a party at his LA home in 2012.

Hilary Duff was a tooth fairy and Mike Comrie was her escort in LA in 2014.

In 2018, Paul Rudd dressed as Weird Al Yankovic for Halloween.

In 2009, Rico Rodriguez went as Superman in Hollywood.

In 2014, Ben McKenzie was James Gordon from Batman in NYC.

Rita Ora and Kate Moss had fun in London as Barbie and Cara Delevingne in 2014.

Hilary Duff and Mike Comrie matched as burglars while out in LA in 2011.

Evan Ross rocked creepy contacts for his 2018 costume.

In 2014, martial artist and actor, Randy Couture, showed some skin as a fighter, while his companion played an adoring ring girl during their night out in LA.

In 2014, Derek Hough stepped out as a lion in downtown LA.

Jenna Ortega and Asher Angel attended the Just Jared 7th Annual Halloween party in 2018 dressed as Ariana Grande and Pete Davidson.

In 2014, JC Chasez got into character as Hunter S. Thompson in LA.

Good Morning America host Lara Spencer was very convincing as Prince George in 2014.

In 2014, Cindy Crawford and Rande Gerber were Cher and Gregg Allman in LA.

In 2014, Tim Allen and his wife stepped out in LA and may have hit up a Western store for these coordinated ensembles.

Gerard Butler attended the Treats Magazine Halloween Party as a knight in LA in 2014.

Nina Dobrev paid homage to Billie Eilish in 2019 with an ensemble that aligned perfectly with the singer's style.

In 2013, Modern Family's Rico Rodriguez showed up at the Hub Network's Halloween Bash dressed as a zombie.

Gwen Stefani channeled Cinderella at an LA bash in 2011.

Mandy Moore and her friends were TLC at a party in LA in 2011.

Bethenny Frankel channeled old-Hollywood glamour at Heidi Klum's annual Halloween party in NYC in 2013.

Mariah Carey left little to the imagination as a bride in 2004 in NYC.

Justin Timberlake's 2005 bash in NYC brought out Jason Biggs and a friend as Wizard of Oz characters.

Audrina Patridge and Corey Bohan cozied up at a 2010 Halloween bash in Vegas.

Mario Cantone dressed up as a Blues Brother in NYC in 2014.

In 2014, Jenna Bush Hager, Savannah Guthrie, and Meredith Vieira took part in Today's Saturday Night Live-themed group costume inspired by the "Mom Jeans" skit.

Brody Jenner and Kaitlynn Carter dressed as Tony Montana and Elvira Hancock for Halloween 2018.

Chef Sandra Lee channeled a princess at Bette Midler's 2011 Halloween party at the Waldorf-Astoria.

Noah, Beanie, Ben, and Molly followed the yellow brick road as The Wizard of Oz characters in 2019.

Adam Levine and Behati Prinsloo turned heads as an '80s rocker couple in LA in 2014.

NBA star Carmelo Anthony got into gangster gear for Bette Midler's 2011 Halloween bash at the Waldorf-Astoria.

Alessandra Ambrosio went to the 2013 Casamigos Halloween Party as a sexed-up Queen of Hearts.

Evan Rachel Wood paid homage to The Rocky Horror Picture Show for a party in LA in 2010.

In 2014, Willie Geist and Tamron Hall dressed as the cheerleaders from SNL.

Sophia Bush and Austin Nichols went as Katy Perry and Russell Brand at an LA function in 2010.

In 2018, Kelly Ripa and Ryan Seacrest threw it back to the '60s dressed as Jeannie and Major Nelson from the TV sitcom I Dream of Jeannie.

Jake Gyllenhaal covered up in a gorilla costume in 2007.

Cardi B performed at Power 105.1's Powerhouse event in 2019 dressed as a sexy nurse.

Dakota Fanning was adorable as Disney's Snow White on an LA red carpet in 2006.

Britney Spears wore a somewhat scandalous costume around LA in 2007.

Lindsay Lohan paid homage to Harley Quinn at Fran Cutler's Halloween party in 2016.

Jonathan embraced his inner feline in 2019.

Kirsten Dunst channeled a fox at a 2011 Halloween party in LA.

Ashley Madekwe paid homage to Heath Ledger's performance as the Joker in a nurse's uniform at Matthew Morrison's Halloween party in 2014.

Kathie Lee Gifford and Hoda Kotb dressed as Wayne and Garth from Wayne's World in NYC in 2014.

Supermodel Alessandra Ambrosio wore a blond wig and a sexy lace mask at a 2010 Halloween shindig in NYC.

Heidi Montag and Spencer Pratt got into the spirit around LA in 2007.

Jason became the King of Rock 'n' Roll in 2019, appearing on The Ellen DeGeneres Show dressed as Elvis.

In 2017, Dua Lipa turned heads at the Kiss Haunted House Party dressed as Lydia Deetz from Beetlejuice.

Kelly Ripa and the Live With Kelly and Michael team dressed up as characters from Sons of Anarchy in 2013.

Shenae Grimes wore a wig and face paint to channel Monster High's Frankie Stein for Matthew Morrison's LA party in 2012.

Kate Moss and Jamie Hince stepped out together as Morticia and Gomez Addams, respectively, for a soiree in London in 2012.

Jessica Alba and her girlfriend paired up as Slash and Axl Rose for Kate Hudson's Halloween Bash in LA in 2014.

Christina Aguilera and Jordan Bratman were a spooky bride and groom for Halloween 2006 in NYC.

In 2014, Brian Grazer attended the Casaamigos Halloween party in LA as Run-DMC.

In 2014, GMA host Amy Robach channeled Maleficent in NYC.

Jonathan Cheban and Kim Kardashian dressed as Sonny and Cher for the Casamigos Halloween Party in 2017.

Jemima Goldsmith was both King Kong and Ann from the classic story at the UNICEF Halloween Ball in London in 2014.

In 2014, Shenae Grimes debuted a Cabaret-esque getup while attending a Halloween party.

In 2019, Halsey and Evan hit up a party, looking extra spooky as Marilyn Manson and a Juggalo.

Brooke Shields got catty on a 2009 Halloween red carpet in NYC.

Jenny McCarthy hosted a Halloween party in NYC and channeled Sandy from Grease in 2014.

Heidi Montag laid down the law with Spencer Pratt in LA in 2008.

Kelly Osbourne wowed as Myrtle Snow from American Horror Story in 2018.

Ross Butler and Noah Centineo attended the Casamigos Halloween party in 2018 dressed as Wolverine and Gaston.

Zoë Kravitz and Joe Jonas posed together as a nun and Derek Zoolander, respectively, at Heidi Klum's Halloween party in 2014.

Scott Disick showed off his American Psycho costume at a Las Vegas party in 2012.

Malin Akerman got spooky as a vampire for an LA bash in 2011.

Jamie Lee Curtis cheered at an event in LA in 2010.

Rihanna dressed as a Teenage Mutant Ninja Turtle in NYC in 2014.

Calista Flockhart and Harrison Ford wore matching nerd outfits for the holiday in LA in 2012.

Mariah went full-on rocker in 2019, donning a wild hairstyle and a bodysuit with a neon guitar.

Lance Bass rocked a crazy costume at a 2011 LA party.

Tony Danza dressed as Elvis at the Hulaween Gala in New York in 2014.

Joey King dressed as Sally from The Nightmare Before Christmas in 2017.

Christina Aguilera was a sexy pirate for a 2011 party in LA.

Harry Styles dressed as Elton John for the 2018 Casamigos Halloween party.

Kacey showed off her team spirit in 2019, clad in a Dallas Cowboys cheerleader costume.

Christina Aguilera celebrated as a sexy nurse with Jordan Bratman as a doctor in Las Vegas in 2005.

Ginger was a spitting image of Ariana Grande at the Good Morning America taping in 2014.

Sarah Hyland stunned fans as Selene from Underworldfor the Just Jared Halloween Party in 2015.

Demi Lovato looked terrifying in the best way at her 2013 LA Halloween party.

Mariah Carey dressed up in a skimpy cookie costume for a party in 2008 — then-husband Nick Cannon accompanied her as a milk carton.

Natalie Morales from the Today show was Pippa Middleton in 2011.

Ashanti attended Heidi Klum's Halloween party as a sexy belly dancer in 2014.

Pink was a girlie clown at a Big Apple Halloween party in 2008.

In 2002, Heidi Klum blew kisses as Betty Boop in NYC.

Chloë Grace Moretz was in character for a London bash in 2012.

Joey King dressed as Harry Potter's nemesis Lord Voldemort for Halloween 2018.

Linda Thompson and Brandon Jenner attended the 2018 Casamigos Halloween party dressed as biblical characters.

Doutzen Kroes was a sexy cat for Halloween in NYC in 2011.

Katie Couric attended NYC's annual Hulaween in the Big Easy event in what looked like a Dolly Parton getup in 2013.

Christina Aguilera made an arresting sight as she left a Halloween party dressed as a cop in 2010.

Chord Overstreet was a convincing police officer in LA in 2014.

Mariah Carey showed skin in a mermaid costume at her 2003 NYC bash.

Jennifer Garner didn't let her bump stop her from celebrating with a witch look in LA in 2011.

The Good Wife's Alan Cumming wore a monkey suit to Bette Midler's 2011 party in NYC.

Jessica Lowndes was a sexy referee at Heidi Klum's 10th Annual Halloween party held at Voyeur in LA during 2009.

Gigi fully committed to embodying The Mask while heading to Kendall Jenner's 2019 Halloween party.

Christina Ricci mimed her way through the holiday in Miami in 2009.

Jada Pinkett Smith and Willow Smith got dressed up together for a 2008 Halloween party to benefit AIDS research in LA.

Paris Hilton and Doug Reinhardt cozied up at an LA bash in 2009.

Lucy stepped into a Tim Burton movie in 2019, dressing as the Corpse Bride.

Bette Midler had Stevie Wonder by her side at her 2011 New York Restoration Project's Hulaween in NYC.

Sacha Baron Cohen hopped out of a car to attend a Halloween party dressed as a sock monkey in 2012.

Zoë Kravitz dressed as an awakened vampire for Halloween 2016.

Molly Sims took it back to the '70s in LA in 2014.

Michelle Trachtenberg was a broken doll in NYC in 2014.

Melissa Rycroft and her husband, Tye Strickland, dressed up as The Flintstones with their daughter, Ava, for the 2011 Dream Halloween charity event in LA.

Lauren Conrad went back in time for her flapper costume in LA in 2008.

In 2018, Ciara dressed as Nakia from Black Panther.

Debra Messing and Daniel Zelman painted their faces as skeletons for Bette Midler's 2011 New York Restoration Project's Hulaween event.

Jessica Simpson and Nick Lachey dressed up as characters from Three's Company for a party in LA in 2004.

Carson Daly and Erik Estrada donned CHiPs outfits in 2013.

La La Anthony painted the town black and white as a creepy skeleton at P. Diddy's Emperor's Ball in 2015.

Chord Overstreet took off his Brad Pitt wig as he left an LA party in 2012.

Ed Norton dressed up for a bash in LA in 2012.

Holly Madison wore a sexy Rapunzel costume to her 2011 "Hollyween" party at the MGM Grand in Las Vegas.

Heidi Klum took the phrase "go big or go home" to heart (or, to chest, rather) when she dressed up as Jessica Rabbit during her annual Halloween bash at Lavo in NYC in 2015.

In LA, Jerry O'Connell dressed up as Elmo in 2006.

Rachel Zoe stepped out in style as The Evil Queen for Kate Hudson's Halloween party in 2014.

Kourtney Kardashian and Scott Disick went as Batman characters in Miami in 2012.

Heidi Klum rolled into her 2011 Las Vegas party in an anatomically correct "Visible Woman" costume.

Today show hosts, Lester Holt and Al Roker, dressed as the Blues Brothers in NYC in 2014.

Kimora Lee Simmons and Djimon Hounsou dressed up as a naughty nurse and doctor in NYC in 2010.

Heidi Klum got catty for her 2007 costume in LA.

Demi Lovato merged sexy with terrifying in 2019, sharing snaps of her Pennywise costume.

In 2011, Kathie Lee Gifford and Hoda Kotb got in on the Today show fun as Princesses Beatrice and Eugenie.

Jonathan and Drew Scott each dressed as Wonder Woman outside the Kelly and Ryan Show in NYC in 2017.

Heidi Klum dressed as a butterfly in 2014.

In 2013, Snooki and JWoww opted for a costume change at their Halloween event, switching it up as Tweedledee and Tweedledum.

In 2018, G-Eazy attended his own Halloween party dressed as Two-Face.

Mia and Darren honored a Disney classic in 2019, transforming into Cruella de Vil and a Dalmatian.

For Halloween 2018, Ryan Seacrest and Shayna Taylor dressed as Karl Lagerfeld and Anna Wintour.

Matthew Morrison went as Richard Simmons in LA in 2010.

Shenae Grimes dressed as Poison Ivy at the Midori Green 2013 Halloween party in LA.

George Clooney dressed as a pilot for the Casamigos Halloween Party in 2018.

Maria Menounos donned a blond wig and camouflage jumpsuit to play the part of a powerful paratrooper in LA in 2014.

The couple channeled their inner cartoons in 2019, dressing as Velma and Scooby-Doo.

Anne Hathaway and then-boyfriend Raffaello Follieri coordinated their 2004 costumes as Cleopatra and Mark Antony at a NYC party.

John Legend and Chrissy Teigen dressed as Mark Antony Cleopatra, respectively, for Heidi Klum's 2010 party in NYC.

No Doubt bandmates Gwen Stefani and Tony Kanal celebrated Halloween in London in 2012 as the zombie version of Danny and Sandy from Grease.

Reese Witherspoon was almost unrecognizable in a black bobbed wig in 2007 as she took her kids trick-or-treating around LA with Jake Gyllenhaal.

In 2014, Jonathan Bennett stepped out as Batman at Matthew Morrison's Halloween party in LA.

In 2017, Paris Hilton dressed as Princess Jasmine for the amfAR Fabulous Fund Fair in NYC.

In 2013, Martha Stewart attended the Hub Network's Halloween Bash in LA as Glinda the Good Witch.

Heidi Klum and Seal were apes for Halloween in 2011.

Kate Upton was a sexy skeleton version of Marilyn Monroe for Heidi Klum's Halloween party in 2011.

Paris Hilton and her boyfriend showed off another set of costumes at Playboy's party in LA in 2012.

Nicole Richie dressed up as J Lo for Kate Hudson's LA bash in 2011.

Heidi Klum and Seal let the Garden of Eden inspire their 2006 costumes in LA.

Harrison Ford went with a wild costume while out in LA in 2011.

Jerry Ferrara coordinated a Tinkerbell and Peter Pan costume for a party in LA in 2011.

Busy Philipps and her daughter, Birdie, got in touch with their inner Tinkerbells at an LA party in 2010.

Kirsten Dunst passed out candy as a spooky bride in LA in 2014.

Coco and Ice-T teamed up as a sexy soldier and a gangster in 2014 for Heidi Klum's Halloween party in NYC.

Joey Fatone was Spider-Man at Matthew Morrison's Annual Halloween party in LA in 2014.

Drake Bell attended the Just Jared's 7th Annual Halloween Party in 2018 as Frank N. Furter from The Rocky Horror Picture Show.

Lily Allen dressed up as an alien for the 2013 UNICEF UK Halloween Ball in London.

Liv Tyler channeled a crow as she trick-or-treated in NYC in 2010.

Heidi Klum was over the top as a burlesque vampire for her annual party in NYC in 2005.

Kellan Lutz showed off his muscles in a Batman suit and his Twilight costar Ashley Greene was sexy in peacock feathers as they cohosted a Vegas Halloween celebration in 2009.

Nick Jonas and Olivia Culpo paired up as a 1920s couple in Las Vegas in 2014.

Stacy Keibler went to an LA party as Raggedy Ann in 2007.

In 2018, Sophie Turner and Joe Jonas opted for mismatched Halloween costumes, dressing as an elephant and Sansa Stark From Game of Thrones, respectively.

Christina Milian attended the STK Pur Halloween party dressed as a sexy ladybug in 2008.

Lala Vasquez and Kim Kardashian posed at a party in NYC in 2012.

Calista Flockhart went '80s for a 2011 Halloween bash in LA.

Katy Perry was Jane Lane from Daria for Halloween in 2012.

Bette Midler was a witch at the 2014 Hulaween Gala in NYC.

Blake Shelton was spotted in Hollywood, CA, dressed as a sailor for Halloween 2018.

Before landing her gig as Catwoman, Anne Hathaway let out her inner feline at a 2010 Lanvin Halloween party in NYC.

Sarah Hyland and Wells Adams wore an incredibly punny "Taco Bell(e)" costume to the Just Jared 7th Annual Halloween Party in 2018.

Neil Patrick Harris wrapped up his Halloween night at Bootsy Bellows in LA in 2012.

In 2014, Eric McCormack donned a rocker look at a Halloween party in LA.

Heidi Klum mounted a horse for her 2001 costume as Lady Godiva in NYC.

Lo Bosworth made Little Red Riding Hood look hot at an event in LA in 2008.

Stacy Keibler hosted a masquerade ball in Las Vegas in 2012.

Ann Curry was Kate Middleton to Meredith Vieira's Queen Elizabeth in NYC in 2011.