Claudia Sulewski’s marriage to Finneas O’Connell, Billie Eilish’s brother, was not just a union of two people but a celebration of style and elegance. The wedding, held in Montecito, California, on August 29, was a star-studded affair, but it was Claudia’s bridal wardrobe that truly stole the show. Collaborating with the legendary Oscar de la Renta Claudia curated four distinct looks for each part of her wedding weekend, each telling a unique story.
The wedding weekend began with a rehearsal dinner where Claudia made her first appearance in an understated satin gown. This elegant bias-cut creation set the tone for the weekend, with its dramatic draping around the neckline and down the back. The design was a hit with her friends, who had witnessed the beginning of Claudia and Finneas’s relationship eight years prior.
Claudia’s Ceremony Gown: A Princess Moment
The ceremony gown was the centerpiece of Claudia’s wedding wardrobe. This ivory silk faille ballgown featured a dramatic drop-waist bodice and an architectural pleated skirt. An asymmetric scarf-like neckpiece cascaded down the train, adding a touch of drama. Claudia drew inspiration from Oscar de la Renta’s archives, particularly the fashion house’s more dramatic, princess-like silhouettes.
The gown’s modern and practical detail was the inclusion of pockets. This thoughtful addition was a nod to the contemporary bride who values both style and functionality. The gown was completed with a long tulle veil designed to sit beneath Claudia’s bun. The reaction from her family and friends, including Billie Eilish, who joined via FaceTime, made the fitting particularly special.
Billie Eilish’s Special Role
Billie Eilish played an integral role in the wedding ceremony, officiating her brother’s marriage. For the occasion, Billie coordinated beautifully with the garden surroundings in an olive-green off-the-shoulder corseted gown with a flowing satin skirt. The wedding reportedly took place at Montecito’s luxurious San Ysidro Ranch, with Billie arriving alongside boyfriend Nat Wolff.
The First Dance Dress: A Grown-Up Glamour
For her third outfit, Claudia wanted something that felt decidedly more grown-up. She changed into a structured cady gown with a statement sculptural peplum fashioned from upcycled feathers. The use of repurposed feathers was particularly meaningful to Claudia because her body-care company Cyklar is vegan and cruelty-free. Tiny crystal-beaded details were scattered throughout the feathers, designed to catch the light once Claudia hit the dance floor.
The bride had even put the gown through a dance test before the wedding because she and Finneas would perform their first dance in it. There was only one problem: Finneas wasn’t allowed to see any of the dresses beforehand. Claudia therefore had to give her husband-to-be some cryptic instructions about their choreography, particularly when it came to lifts, to ensure the sculptural creation survived their routine intact.
The Playful Pink After-Party Look
After three predominantly traditional bridal looks, Claudia completely changed direction for the after-party. Her fourth Oscar de la Renta ensemble took inspiration from the fashion house’s early-2000s archives and the playful designs once worn on its runway by supermodels including Gisele Bündchen. The bride wore a pink boat-neck top with a hand-draped dove-grey silk faille bubble skirt and coordinating grey heels, creating a youthful mini silhouette that allowed her to dance into the night.
Claudia joked during her final fitting, I feel like a little cupcake. This playful look was a stark contrast to her earlier, more traditional gowns, showcasing Claudia’s versatility and the range of Oscar de la Renta’s designs. The after-party look was a hit, allowing Claudia to let loose and enjoy the celebration with her new husband and guests.
The wedding was not just a celebration of love but also a testament to Claudia’s fashion-forward sensibilities and her ability to curate a wardrobe that told a story. Each dress was a chapter in the narrative of her wedding weekend, from the elegant rehearsal dinner gown to the playful after-party look. The collaboration with Oscar de la Renta resulted in a collection of dresses that were not only stunning but also deeply personal, reflecting Claudia’s style and values.
