16 It-Girl Approved Halloween Costume Ideas

How does one find the perfect Halloween costume that is equal parts unique, alluring, and impressive? Turn to our seasoned panel of experts in everything cool, the It-girls of the fashion world, of course.

Scroll down for an assortment of ideas from Alexa Chung, Mary-Kate Olsen, and more, including everything from fashionable spins on classic costumes to inspired takes on movie characters.


Behati Prinsloo from Eyes Wide Shut
(Image credit: NGRE/AKM-GSI)

Get the look: Tom Banwell Raven Leather Mask ($59) in Gold


Alexa Chung as a Nun

Get the look: Jacobson Hat Company Nun Hat ($3); Mango Crepe Skater Dress ($81).


Atlanta de Cadenet Taylor as a Skeleton & Laura Love as a Leopard
(Image credit: Rex USA)

Get de Cadenet Taylor's look: Black and White Makeup ($8)

Get Love's look: River Island Halloween Leopard Kitten Ears Headband ($13); Jones New York Animal Print cotton Turtleneck ($29).


Julia Restoin Roitfeld as Tina Turner
(Image credit: Billy Farrell)

Get the look: Tina Turner Costume Wig ($30); Topshop Lace Body-Con Slipdress ($68).

Related: And Now, 9 Cheap (and Surprisingly Chic) Costumes to Wear This Halloween


Dree Hemingway as a French Maid Kitty

Get the look: River Island Halloween Leopard Kitten Ears Headband ($13); Charlotte Russe French Maid Accessory Set ($13).


Joan Smalls as a Leopard & Candice Swanepoel as Elvira
(Image credit: Carly Otness_BFAnyc.com)

Get Smalls' look: Blaque Label Red Sequin One Shoulder Mini Dress ($48)

Get Swanepoel's look: Elvira Mistress of the Dark Costume ($23)


Alexa Chung as Hamburglar
(Image credit: Matteo Prandoni/BFAnyc.com)

Get the look: Black Mask ($5); River Island Black Stripe Rib V Neck Long Sleeve T-Shirt ($14); Burger Costume ($37).


Kate Moss as a Masked Maiden

Get the look: Johnny Loves Rosie Halloween Gold Eye Mask ($27)


Mara Hoffman & Pamela Love as Unicorns
(Image credit: Aria Isadora/BFAnyc.com)

Get the look: The Hatter Designs Black and Silver Unicorn Feather Mohawk ($285)


Daria Werbowy as a Ghost

Get the look: Sister Jane Requiem Lace Dress ($118); White Creme Makeup ($7).


Agyness Deyn & Alexa Chung as Wayne and Garth from Wayne's World

Get Deyn's look: Wayne's World Adjustable Black Baseball Hat ($20); Blank NYC Faux Leather Jacket ($110).

Get Chung's look: H&M Cotton Shirt ($25) in Green Plaid; Garth Algar Wig ($12); Buddy Holly Party Glasses ($3). 


Poppy Delevingne as Margot Tenenbaum

Get the look: ASOS Vintage Faux Fur Coat ($133)


Kate Moss as Morticia Addams
(Image credit: Rex USA)

Get the look: The Addams Family Deluxe Morticia Wig ($11)


Mary-Kate Olsen as a Moon

Get the look: Modcloth Ink Positively Dress ($75) in Celestial; Silver Metallic Cream Makeup ($5).

What are you being for Halloween this year? Let us know in the comments below!

Editor in Chief

Kat Collings has over 15 years of experience in the editorial fashion space, largely in digital publishing. She currently leads the vision for editorial content at WhoWhatWear.com as the site's editor in chief, having risen through the editorial ranks after joining the company in 2012. Collings is a Digiday Future Leader Awards nominee, was named Buzzfeed's best fashion Instagram accounts of the year, and is a member of the CFDA Awards Fashion Guild. Prior to Who What Wear, Collings worked on styling projects for brands such as Vogue, Teen Vogue, Lucky, and Oliver Peoples. She graduated from UCLA with a BA in communications and calls Los Angeles home.