Hailey Bieber Embraces the Cheeky Lingerie Trend at YSL's Spring 2026 Show — See Photos

Skin is in!
Hailey Bieber attends the Saint Laurent Womenswear SpringSummer 2026 show as part of Paris Fashion Week on September 29...
Pascal Le Segretain/Getty Images

Hailey Bieber is continuing her reign as fashion’s favorite provocateur with her latest appearance at the Saint Laurent spring-summer 2026 show at Paris Fashion Week, which proves she’s not loosening her grip anytime soon.

Arriving against the cinematic backdrop of the glittering Eiffel Tower, Hailey Bieber stepped out in a tiny, sunshine-yellow romper that blurred the line between ready-to-wear and bedroom. She placed a burnt orange quarter zip jacket over the look, but we got to see the whole piece in her Instagram post.

The cheeky one-piece, cut high enough to rival the skimpiest of swimwear, was grounded by sleek black knee-high boots — a masterclass in balancing daring proportions with understated polish. Bieber kept her beauty look simple, tussled faint curls with a nice amount of rosy blush on her cheeks.

Hailey Bieber at the Saint Laurent fashion show as part of SpringSummer 2026 Paris Fashion Week held at Fontaine du...
River Callaway/Getty Images

The cheeky fashion era Bieber is participating in falls neatly into fashion’s ongoing love affair with lingerie dressing and micro silhouettes. What began as a flirtation with hot pants has evolved into something far bolder. Skin is in, and hems are getting shorter by the season. Bella Hadid, who made her first runway appearance of Fashion Month at the same show, has been one of the movement’s most influential front women, championing barely-there shorts that toe the line between playful and provocative. Now, Bieber is clearly ready to match her stride.

Hailey Bieber at the Saint Laurent fashion show as part of SpringSummer 2026 Paris Fashion Week held at Fontaine du...
Gilbert Flores/Getty Images

Bieber wasn’t alone in embracing the barely clothed Renaissance at Saint Laurent. Pop star (and newlywed) Charli XCX also arrived in a cropped quarter-zip jacket strikingly similar to Bieber’s — albeit in an alternate colorway — and paired it with ruffled pink lingerie bottoms. Also in attendance was Rosé of BLACKPINK, whose presence only solidified YSL’s standing as the definitive hotspot for global “it” girls this season. Opting for longer lingerie, Zoë Kravitz rounded off the FROW quartet.

Hailey Bieber Zoe Kravitz Charli XCX Ros at the Saint Laurent fashion show as part of SpringSummer 2026 Paris Fashion...
Gilbert Flores/Getty Images

Saint Laurent may be known for its sharp tailoring and timeless elegance, but this front row declared a new rule: underwear is officially outerwear, and Paris is its current playground. If this is where fashion’s hemlines are headed, expect the next few months of fashion to be filled with shorter, bolder, and infinitely cheekier bottoms.