Charli XCX Swaps Her Ugg Boots and Puffer Jacket for a Saint Laurent Suit Straight Off the Runway

From 'Brat' to legit movie star.

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Charli XCX attending Sundance Film Festival wearing Saint Laurent, a puffer jacket, jeans, and Ugg boots
(Image credit: Getty Images/Jerod Harris/GC Images/Dia Dipasupil)

Charli XCX is currently at the 2026 Sundance Film Festival to launch her movie, The Moment. Luckily, the superstar has packed a plethora of chic outfits for the occasion, effortlessly switching between comfy ensembles and complete runway looks.

On Friday, January 23, Charli was spotted in Park City, Utah, wearing a royal blue and bright red puffer jacket promoting The Moment. She paired the striking jacket with an asymmetrical black top, baggy wide-leg jeans, and a pair of Women's Classic Ultra Mini Ugg Boots in a chestnut shade. The snug footwear retails for $160, and Charli's endorsement proves that It girls still love Uggs.

The "360" singer carried a Hammitt Kyle Sml Shoulder Bag in Midnight Marquise and Gunmetal, which retails for $295. A pair of Off-White Bologna Black Frame Sunglasses completed the off-duty outfit.

Charli XCX attending Sundance Film Festival wearing Saint Laurent, a puffer jacket, jeans, and Ugg boots

Charli XCX at Sundance Film Festival in a puffer jacket, baggy jeans, and Ugg boots.

(Image credit: Getty Images/Jerod Harris/GC Images)

For The Moment's red carpet, Charli ditched her casual Sundance outfit for a runway look. The "Apple" singer opted for a Saint Laurent suit from the fashion house's Spring 2025 Ready-to-Wear collection. She dramatically dragged a long fur coat across the carpet, and wore a pair of $2,050 Saint Laurent Amalia Slingback Pumps in Black and Fuchsia.

Charli XCX attending Sundance Film Festival wearing Saint Laurent, a puffer jacket, jeans, and Ugg boots

Charli XCX wearing Saint Laurent at Sundance Film Festival 2026.

(Image credit: Dia Dipasupil/Getty Images)

It's undeniable: Charli XCX's red carpet style at Sundance confirms that her transformation from pop star to movie star is complete.

Shop Outfits Inspired by Charli XCX

Amy Mackelden
Amy Mackelden
Weekend Editor

Amy Mackelden is the weekend editor at Marie Claire, where she covers celebrity and royal family news. She was the weekend editor at Harper’s BAZAAR for three years, where she covered breaking celebrity and entertainment news, royal stories, fashion, beauty, and politics. Prior to that, she spent a year as the joint weekend editor for Marie Claire, ELLE, and Harper's BAZAAR, and two years as an entertainment writer at Bustle. Her additional bylines include Cosmopolitan, People, The Independent, HelloGiggles, Biography, Shondaland, Best Products, New Statesman, Heat, and The Guardian. Her work has been syndicated by publications including Town & Country, Good Housekeeping, Esquire, Delish, Oprah Daily, Country Living, and Women's Health. Her celebrity interviews include Jennifer Aniston, Jessica Chastain, the cast of Selling Sunset, Emma Thompson, Jessica Alba, and Penn Badgley. In 2015, she delivered an academic paper at Kimposium, the world's first Kardashian conference.