See the 2019 Halloween costumes from your favorite stars

Freddie Prinze Jr. as Doc Brown and Sarah Michelle Gellar as Marty McFly from Back to the Future

Celebrities have been out in full force celebrating Halloween this week, with many getting really creative with their costumes. See what your favorite stars dressed up as in 2019.

Mindy Kaling as Cliff Booth from Once Upon a Time in Hollywood

Tom Kaulitz as an astronaut and Heidi Klum as an alien

Antoni Porowski as Blockbuster Video

Bette Midler as Mae West

Barbara Palvin and Dylan Sprouse as Princess Mononoke's San and Ashitaka

Noah Galvin, Beanie Feldstein, Ben Platt, and Molly Gordon as characters from The Wizard of Oz

David Burtka and Neil Patrick Harris as the Olsen twins

Katie Couric as Elizabeth Holmes and John Molner as Bob Ross

Lance Bass as JoJo Siwa and JC Chasez as Mickey Mouse

Michael Douglas as Lawrence of Arabia and Catherine Zeta-Jones as Jean Harlow

Darren Criss as a dalmatian and Mia Swier as Cruella de Vil

Jonathan Van Ness as a cat

Ashley Tisdale and Christopher French as the Maitlands from Beetlejuice

Debra Messing as Joan of Arc

Dakota Fanning as a shower loofah

January Jones as Sigourney Weaver in Ghostbusters

Molly Sims and family as The Wizard of Oz

Zoe Saldana as a ballerina

Charlize Theron and her mother as Gomez and Morticia from The Addams Family

Busy Philipps as Amy Poehler in Mean Girls

Haim as Hanson

Camila Mendes as Rick from Rick and Morty

Chris Colfer as Elizabeth Warren

Emma Bunton as a jack-o'-lantern

Gabrielle Union as a boxer and Dwyane Wade as Nino Brown from New Jack City

Chrissy Metz as Beetlejuice

Kim Kardashian as Elle Woods in Legally Blonde

Cody Simpson and Miley Cyrus as Billy Idol and Perri Lister

Jane Krakowski as Miss Adelaide from Guys and Dolls

Mariah Carey as an '80s rocker

Lucy Boynton as the Corpse Bride

Judith Light as Marlene Dietrich

Ice-T as a character from The Purge and Coco as Madonna

Jenna Dewan as a skeleton

Ciara and Russell Wilson as Beyoncé and Jay-Z

Jesse Tyler Ferguson and his husband Justin Mikita as Billie Eilish and her brother Finneas

Gabrielle Union as a boxer and her husband Dwyane Wade as New Jack City's Nino Brown

Kerry Washington as Uma from The Descendants

Beanie Feldstein as Dorothy, Ben Platt as the Tin Man, Molly Gordon as the Cowardly Lion, and Noah Galvin as the Scarecrow from The Wizard of Oz

Neil Patrick Harris as Vincent van Gogh, his husband David Burtka as Salvador Dali, and their kids as Frida Kahlo and Andy Warhol

Haim as Hanson

Tracee Ellis Ross as DJ Quik

Lil Nas X as Cam'ron

Dax Shepard and Kristen Bell as Mr. and Mrs. Claus

Busy Philips as June George, Regina George's cool mom from Mean Girls

Tom Brady as a stormtrooper from Star Wars, and his wife Gisele Bunchen as the Earth

Kylie Jenner as Ariel from The Little Mermaid

Kate Beckinsale as Audrey Hepburn's Holly Golightly and Jonathan Voluck as Elton John

LeBron James as Edward Scissorhands

Demi Lovato as Marie Antoinette

Kevin Hart as Dwayne 'The Rock' Johnson

Charlie Cox as Loki and Tom Hiddleston as Daredevil

Tom Brady as a stormtrooper

Rose McGowan as Mia Farrow in Rosemary's Baby

Andy Cohen and son Benjamin as Snoopy and Woodstock

Bella Hadid as Fred Flintstone

Jessica Biel as Justin Timberlake in *NSYNC and Justin Timberlake as her microphone

Tracee Ellis Ross as DJ Quick

Kourtney Kardashian as Ariana Grande

Evan Peters and Halsey as Sonny and Cher

Gabrielle Union and daughter Kaavia as Isis from Bring It On

G-Eazy as Edward Scissorhands

Elizabeth Hurley as Uma Thurman's the Bride character in Kill Bill

Alexis Martin Woodall and Kathy Bates as a cat from Cats

Ashely Graham as Jessica Rabbit

Cardi B as a sexy nurse

Kelly Osbourne as a clown

Lisa Rinna as J.Lo at the 2000 Grammys

Heidi Klum and Tom Kaulitz as human fireworks

Tracee Ellis Ross as Lupita Nyong'o's doppelgänger in Us

Nina Dobrev as Billie Eilish

Chris Ivery as Prince, Ellen Pompeo as Cher, and Cindy Crawford, and Rande Gerber as hippies

Vivica A. Fox

Jeff Probst, Lisa Ann Russell, Dave Grohl, and Jordyn Blum Grohl

Laverne Cox as a masked warrior

M. Night Shyamalan and Dr. Bhavna Vaswani

Angelica Ross as Compton Clovers cheerleader Isis

Former Bachelor star Nick Viall as upcoming Bachelor star Peter Weber