Best celebrity Halloween costumes of 2021

Following her incredible homage to Britney Spears, Hailey Bieber just went and shared her second nostalgic Halloween costume of the year, dressed as Mia Thermopolis while recreating iconic snaps from The Princess Diaries.

Kourtney Kardashian and Travis Barker are at it again, this time posing as Edward Scissorhands and Kim Boggs.

Lizzo knocked it out of the park with her incredible baby Yoda costume which is, hands down, one of our faves from this year's selection.

Kylie Jenner went for a classic Halloween costume, a black cat, which she matched with mum Kris Jenner. "in full mommy mode this halloween 🐈‍⬛ i hope everyone has a safe night 🖤🖤" writes Kylie on Instagram. Stormi goes for a sweet mermaid look while Travis Scott opts for Michael Myers from the Halloween franchise.

Harry Styles dressed as Dorothy from The Wizard of Oz for Halloween or, as he called it, 'HARRYWEEN' and yup, now that's what we're officially calling the spooky eve from now on.

Cardi B absolutely nailed it as Morticia Addams in this semi-sheer netted dress situation, designed by Natalia Fedner - a designer also loved by Kylie Jenner.

Maya Jama looks practically unrecognisable as Medusa in this metallic gold get-up, which looks soooo profesh.

Cardi B went on to share another Halloween costume, a mother-daughter snap with Kulture, the pair dressed as witches.

Kourtney Kardashian and Travis Barker channelled the 1993 romantic crime film, True Romance, even taking multiple pictures in costume around town, showing they definitely committed to the looks.

Heidi Klum teased her 2021 Halloween costume in a series of videos to Instagram, including this one of her dressed as a woman-turned-zombie, complete with a blonde wig, pink top, jeans and more than a bit of impressive theatrical makeup.

Days after sharing snaps of her fashion take on the Corpse Bride (scroll down to see the look), Kendall Jenner goes and reps this otherworldly swirly catsuit and high blonde wig situation, which she captioned "Mars Attacks!". Amazing, right?

Kendall Jenner opted for an eerie (but also pretty darn fashionable, of course) Halloween costume for 2021, sharing a series of pics with her putting her own spin on Corpse Bride. The costume, consisting of lace bridal lingerie, a long veil, platform heels and some trippy visual effects make for an incred Halloween look.

Baby Yoda was a celeb fave for Halloween this year, with Laura Whitmore, Iain Stirling and their daughter channelling the Star Wars vibes."So Han and Leia were in fact baby Yoda’s real parents. Who knew?!" wrote Laura.

Hailey Bieber channelled Britney Spears in not one but FOUR incredible costumes, recreating some of the star's most iconic looks.

Janelle Monae is on a WHOLE OTHER LEVEL of amazing going full Grinch and I am ob-sessed.

Molly-Mae Hague and Tommy Fury leant in to Tommy's boxing career with the duo dressed in boxer and ring girl looks (note their matching 'Fury' waistbands), both covered in blood for extra Halloween spookiness.

Olivia Rodrigo looks phenom dressed as Elvira Hancock from Scarface, doncha think?

Megan Thee Stallion knocks it out of the park with this fierce Pinhead interpretation, which she captioned on Instagram, "Pain has a face. Allow me to show you. Gentlemen I am pain #hottieween"