Celebrity Wedding in Montecito
Finneas and Claudia Sulewski marry in an intimate Montecito ceremony officiated by Billie Eilish.
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Key Points
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Claudia Sulewski wore four Oscar de la Renta looks with explicit dress descriptions: a rehearsal dress that was architectural and backless; a ceremony ivory silk faille ballgown with a drop-waist bodice and pleated skirt with a scarf trailing the train; a first-dance/reception strapless cady gown with feathers at the waist; and an after-party two-piece look with a pink top and a gray bubble skirt.
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The ceremony took place at the luxe San Ysidro Ranch in Santa Barbara, California, according to Vogue coverage.
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The guest list extended beyond widely reported names to include Rebecca Black, Devon Lee Carlson, Stassie Karanikolaou, and Jesse Jo Stark among others, per Vogue reporting.
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Billie Eilish attended the wedding and officiated the ceremony, arriving with Nat Wolff and staying close to Finneas and Claudia throughout the festivities.
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The couple included their dogs, Peaches and Moose, with bows cut from Claudia's ceremony gown fabric for the dogs to walk down the aisle as flower dogs.
Finneas O'Connell married Claudia Sulewski on Saturday, August 29, in an intimate Montecito ceremony where his sister Billie Eilish officiated the vows. The Grammy-winning producer and the CYKLAR Skincare founder said "I do" at San Ysidro Ranch in Santa Barbara after seven years of dating, cementing a relationship that began on a dating app in 2018. Billboard reported the couple announced their engagement in September 2025.
Claudia wore four custom Oscar de la Renta gowns across the wedding weekend. Her ceremony dress was an ivory silk faille ballgown with a drop-waist bodice and pleated skirt with a trailing scarf. She also wore an architectural backless rehearsal look, a strapless cady gown with feathers for the first dance, and a two-piece after-party outfit with a pink top and gray bubble skirt. Vogue covered the wedding details extensively.
Billie Eilish Officiates Her Brother's Big Day
Billie Eilish took on an emotional role as her brother's officiant, marking a major moment in the family celebration. She arrived with actor Nat Wolff and stayed close to the couple throughout the festivities. Billboard confirmed the Grammy-winning singer officiated the ceremony alongside Finneas and Claudia's parents, making it a deeply personal family affair.
Celebrity Guest List Fills Santa Barbara Venue
The wedding drew a constellation of A-list guests to San Ysidro Ranch. Justin and Hailey Bieber, Emma Chamberlain, Jason Sudeikis, Kristen Bell, and Dax Shepard were among the attendees. Vogue also reported that Rebecca Black, Devon Lee Carlson, Stassie Karanikolaou, and Jesse Jo Stark attended the star-studded celebration in the luxe Santa Barbara location.
Peaches and Moose Walk Down the Aisle
The couple included their beloved dogs in the ceremony in a creative way. Peaches and Moose wore bows that were cut from the fabric of Claudia's ceremony gown, allowing the pups to walk down the aisle as flower dogs. The detail added a personal, lighthearted touch to the intimate Montecito celebration.
A Seven-Year Love Story Comes Full Circle
Finneas and Claudia's relationship began in 2018 when they met through a dating app. Over the years, the couple developed deep creative ties—Claudia has inspired songs by the Grammy-winning producer, and she has collaborated on projects with his sister Billie Eilish. Their engagement announcement came in September 2025, Yahoo reported, before they married weeks later in late August at the picturesque venue.
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