Finneas O’Connell, the singer, songwriter and producer known for his musical partnership with his sister Billie Eilish, has married longtime girlfriend Claudia Sulewski in a star-studded ceremony in Montecito, California.
The couple exchanged vows Saturday at the picturesque San Ysidro Ranch, where they were surrounded by family and a large gathering of celebrity friends. Eilish reportedly played a particularly meaningful role in the ceremony, serving as its officiant.
Billie Eilish Takes on Special Role
Eilish, 24, attended her brother’s wedding in an elegant off-the-shoulder olive-green gown and was accompanied by her boyfriend, actor Nat Wolff, 31.
Her reported role as officiant added another personal element to the celebration for the siblings, who have maintained an unusually close relationship while also building a hugely successful musical partnership.
Eilish and Finneas have worked together throughout her career, with their collaborations contributing to the singer’s status as a multiple Grammy Award winner.
A Star-Studded Guest List
The wedding brought together a notable collection of Hollywood and entertainment figures.
Among the reported guests were Nina Dobrev, Kristen Bell, Dax Shepard, Justin Bieber and Hailey Bieber, Emma Chamberlain, Rachel Sennott, Stassie Karanikolaou, Jason Sudeikis and Carter Gregory.
The gathering reflected the couple’s extensive connections across music, acting, fashion and social media.
Sulewski’s Four-Dress Wedding Wardrobe
Sulewski, a beauty influencer, made fashion a major part of the weekend, wearing four custom creations from Oscar de la Renta.
According to Vogue, her wedding wardrobe began with a bias-cut dress featuring a draped back for the rehearsal dinner. For the ceremony, she changed into a ballgown with a drop-waist bodice and bell-shaped skirt.
She later switched to a reception dress featuring feathers before finishing the celebrations in a pink and dove-gray after-party look.
Finneas, 29, kept his own wedding attire classic, choosing a traditional black tuxedo for the ceremony.
Their Relationship Began on Raya
The marriage marks the latest chapter in a relationship that began in 2018, when Finneas and Sulewski met through the exclusive dating app Raya.
Finneas has previously described being immediately captivated by Sulewski. He was so inspired by their first meeting that he wrote his song “Claudia” within hours.
The relationship later influenced other parts of his music, including his 2022 song “Mona Lisa, Mona Lisa.” Sulewski also appeared in and directed the song’s phone-recorded music video.
A Carefully Planned Mountain Proposal
Finneas proposed to Sulewski last September after seven years together, turning their anniversary into the setting for a carefully concealed marriage proposal.
He later explained that Sulewski believed they were simply going away for a beach staycation. Instead, Finneas secretly arranged for them to travel by helicopter to a private campsite in the mountains, where a private chef prepared a meal for the couple before leaving.
The musician admitted that keeping the engagement ring hidden proved to be one of the most stressful parts of the surprise.
He recalled that the ring had been concealed inside a sock wrapped around another sock in his suitcase. At one point, he had to discreetly retrieve and secure it after hearing it move inside its box.
Sulewski Wanted Finneas Involved in Planning
In the months leading up to the wedding, Sulewski revealed that Finneas had taken a more active role in organizing their big day than she initially expected.
She said she was pleased that her fiancé had strong opinions about the arrangements because she wanted him to feel that the wedding belonged equally to both of them.
Sulewski acknowledged that she had been closely involved with the planning, joking that she already had documents covering everything from table arrangements and flowers to ceremony seating.
Despite her detailed approach, she said she did not consider herself a “bridezilla,” describing the planning process instead as something she found exciting and meaningful.
From Musical Partners to Family Milestones
Finneas’ wedding represents a major personal milestone for an artist whose public career has largely been intertwined with his work alongside Billie Eilish.
While the siblings are best known professionally for creating music together, their close family relationship has remained a prominent part of their public lives.
With Eilish reportedly taking on the responsibility of officiating the ceremony, the Montecito wedding gave that family bond an especially visible role as Finneas and Sulewski began their married life together.
