Billie Eilish Is a Streetwear "Barbie" in This Polarizing Y2K Outfit

Greta Gerwig's "Barbie" world premiere saw an incredibly exciting assortment of looks that packed more of a punch with each celebrity arrival. Billie Eilish, who is one of the artists featured on the film's soundtrack (she wrote a song called "What Was I Made For?" alongside brother Finneas), flaunted one of the most unique takes on Barbiecore fashion. Sticking to her signature aesthetic of streetwear that's slightly offbeat, the 21-year-old musician sported a pinstripe shirt with a bright satin tie; baggy, cropped trousers that gave way to thick baby pink ribbed socks and chunky peach ERL sneakers; and a flamingo patent purse from Vivienne Westwood that she swung in the air while posing for pictures. Eilish accessorized with her usual assortment of silver chunky rings, ball-shaped metal earrings, and a varsity letter blanket that she folded up to tote along the way. She wore her long, dark hair pin-straight with her bangs falling over her brows, and she chose a glossy, strawberry-pink lip color.

Of course, Margot Robbie, 33, and Ryan Gosling, 42, also attracted plenty of attention, rocking custom Schiaparelli and Gucci, respectively. Robbie's look was yet another re-creation of a glamour doll from 1960, as she continues through her meticulously curated press tour wardrobe at the hands of stylist Andrew Mukamal. Meanwhile, Gosling's own chain-link necklace was completed with an "E" pendant in the classic Barbie font — an ode to his supportive wife Eva Mendes.

Dua Lipa's custom Bottega Veneta naked dress, Issa Rae's fuchsia Marc Bouwer number with a boob window cutout, Ashley Graham's polka-dot Nina Ricci dress, and Karrueche's bold and empowering sunshine-yellow Christian Siriano set are just a few more mentionables from the July 9 "Barbie" premiere, which was held at Shrine Auditorium and Expo Hall in LA. Ahead, you can click through the full lineup and find every outfit detail you're itching for.

Margot Robbie at the "Barbie" Premiere
Getty | Frazer Harrison

Margot Robbie at the "Barbie" Premiere

Margot Robbie wearing custom Schiaparelli at the world premiere of "Barbie" in LA on July 9, 2023.

Ryan Gosling at the "Barbie" Premiere
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Ryan Gosling at the "Barbie" Premiere

Ryan Gosling wearing a Gucci suit and custom Hollywood 3D Printing necklace with an "E" for Eva Mendes at the world premiere of "Barbie" in LA on July 9, 2023.

Issa Rae at the "Barbie" Premiere
Getty | Axelle/Bauer-Griffin

Issa Rae at the "Barbie" Premiere

Issa Rae wearing custom Marc Bouwer at the world premiere of "Barbie" in LA on July 9, 2023.

Dua Lipa at the "Barbie" Premiere
Getty | Axelle/Bauer-Griffin

Dua Lipa at the "Barbie" Premiere

Dua Lipa wearing a custom Bottega Veneta dress and Tiffany & Co. jewelry at the world premiere of "Barbie" in LA on July 9, 2023.

Billie Eilish at the "Barbie" Premiere
Getty | Albert L. Ortega

Billie Eilish at the "Barbie" Premiere

Billie Eilish wearing ERL sneakers and a Vivienne Westwood bag at the world premiere of "Barbie" in LA on July 9, 2023.

Ashley Graham at the "Barbie" Premiere
Getty | Axelle/Bauer-Griffin

Ashley Graham at the "Barbie" Premiere

Ashley Graham wearing a custom Nina Ricci by Harris Reed dress with Chopard jewelry and Manolo Blahnik shoes at the world premiere of "Barbie" in LA on July 9, 2023.

Kate McKinnon at the "Barbie" Premiere
Getty | Christopher Polk

Kate McKinnon at the "Barbie" Premiere

Kate McKinnon wearing custom Kallmeyer at the world premiere of "Barbie" in LA on July 9, 2023.

America Ferrera at the "Barbie" Premiere
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America Ferrera at the "Barbie" Premiere

America Ferrera wearing a custom St. John dress, Kate Spade New York bag, and Irene Neuwirth jewelry at the world premiere of "Barbie" in LA on July 9, 2023.

Nicki Minaj at the "Barbie" Premiere
Getty | Axelle/Bauer-Griffin

Nicki Minaj at the "Barbie" Premiere

Nicki Minaj wearing Alaïa at the world premiere of "Barbie" in LA on July 9, 2023.

Dove Cameron at the "Barbie" Premiere
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Dove Cameron at the "Barbie" Premiere

Dove Cameron wearing an Ellie Misner look and Giuseppe Zanotti shoes at the world premiere of "Barbie" in LA on July 9, 2023.

Karrueche at the "Barbie" Premiere
Getty | Axelle/Bauer-Griffin

Karrueche at the "Barbie" Premiere

Karrueche Tran wearing a Christian Siriano look and Le Silla shoes at the world premiere of "Barbie" in LA on July 9, 2023.

Kiersey Clemons at the "Barbie" Premiere
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Kiersey Clemons at the "Barbie" Premiere

Kiersey Clemons wearing Harbison Studio at the world premiere of "Barbie" in LA on July 9, 2023.

Alexandra Shipp at the "Barbie" Premiere
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Alexandra Shipp at the "Barbie" Premiere

Alexandra Shipp wearing Miu Miu at the world premiere of "Barbie" in LA on July 9, 2023.

Shay Mitchell at the "Barbie" Premiere
Getty | Axelle/Bauer-Griffin

Shay Mitchell at the "Barbie" Premiere

Shay Mitchell wearing Shushutong at the world premiere of "Barbie" in LA on July 9, 2023.

Gal Gadot at the "Barbie" Premiere
Getty | Matt Winkelmeyer/GA

Gal Gadot at the "Barbie" Premiere

Gal Gadot wearing a JW Anderson dress, Tiffany & Co. jewelry, and an Aupen bag at the world premiere of "Barbie" in LA on July 9, 2023.

Hari Nef at the "Barbie" Premiere
Getty | Axelle/Bauer-Griffin

Hari Nef at the "Barbie" Premiere

Hari Nef wearing a Celine by Hedi Slimane dress, Tiffany & Co. jewelry, and Giuseppe Zanotti shoes at the world premiere of "Barbie" in LA on July 9, 2023.

Simu Liu at the "Barbie" Premiere
Getty | Frazer Harrison

Simu Liu at the "Barbie" Premiere

Simu Liu wearing a Versace look and David Yurman jewelry at the world premiere of "Barbie" in LA on July 9, 2023.

Haim at the "Barbie" Premiere
Getty | Axelle/Bauer-Griffin

Haim at the "Barbie" Premiere

Alana Haim, Danielle Haim, and Este Haim wearing Louis Vuitton at the world premiere of "Barbie" in LA on July 9, 2023.

Greta Gerwig at the "Barbie" Premiere
Getty | Axelle/Bauer-Griffin

Greta Gerwig at the "Barbie" Premiere

Greta Gerwig wearing a Valentino look and Cartier jewelry at the world premiere of "Barbie" in LA on July 9, 2023.