Serving Old Hollywood elegance by day, and Mugler-fueled modernism by… also day. Sydney Sweeney is on a style offensive, and New York City is her runway.
As the Euphoria and The White Lotus star embarks on the press tour for her upcoming Apple TV+ psychological thriller Echo Valley, she’s making one thing clear: she didn’t come to play—she came to conquer. With a wardrobe that could outshine an entire Met Gala red carpet, Sweeney is redefining summer tailoring with a chic, commanding twist.
On Thursday, while stepping into Late Night with Jimmy Fallon, Sweeney summoned vintage allure in a slate-grey Givenchy Couture suit plucked from the label’s 1996 archives, back when John Galliano was orchestrating fashion as theatre. The ensemble was pure silver screen nostalgia: a high-collared, subtly cropped jacket and a perfectly tailored high-waisted skirt, both adorned with delicate bows that whispered of Dior’s New Look but spoken in Galliano’s audacious tone. Imagine Katharine Hepburn meets 21st-century power player. Cinematic. Timeless. Boss.
But our girl is never one-note.

Later that day, en route to The Kelly Clarkson Show, Sweeney switched gears—and decades—in a razor-sharp, all-white Mugler suit that screamed minimalist seduction. Think boardroom Barbie, if Barbie moonlighted as the CEO of a fashion conglomerate. The plunging blazer hugged her frame with engineered precision, paired with structured short-shorts that defied any old notions of office dress codes. Her beauty look? A glossy high ponytail with a sculptural side-slick, straight out of a Helmut Newton photograph.
Both looks were anchored by sleek black pointed-toe pumps and classic top-handle bags, proving that even amid bold statements, Sweeney understands the importance of polished accessories.
This isn’t the first time she’s dipped into executive realness. In recent appearances, she’s been spotted in everything from a pinstriped tie-collared blazer dress to a languid silk check pant set by Oscar de la Renta—each look a love letter to the modern working woman with a flair for drama.
But then came the premiere, and with it, a sartorial shift.

For the debut screening of Echo Valley, Sweeney traded in tailoring for pure, unfiltered fantasy. Her red carpet entrance? A custom scarlet Vera Wang gown that could have waltzed straight off an opera stage. Crafted from sumptuous Italian silk and designed to billow like a flame in motion, the gown was a maximalist moment of old-world glamour—and easily one of the season’s most unforgettable fashion turns since Cannes.
Sydney Sweeney may be promoting a psychological thriller, but make no mistake: when it comes to style, she’s the one in control.