Finneas O’Connell, the Grammy-winning producer and brother of Billie Eilish, married his longtime girlfriend, actress and influencer Claudia Sulewski, on Saturday.
The couple chose the exclusive San Ysidro Ranch in Santa Barbara, California, for an outdoor wedding surrounded by greenery. Their marriage marks the latest milestone in a relationship that has captivated fans for eight years.
Celebrity guests attend Finneas and Claudia Sulewski’s wedding
The star-studded celebration included members of the couple’s inner circle, including Justin and Hailey Bieber, actors Kristen Bell and Dax Shepard, Nina Dobrev, Jason Sudeikis, content creator Emma Chamberlain, Carter Gregory, Stassie Karanikolaou, and Rachel Sennott.
According to the first leaked images, Billie Eilish officiated the couple’s vows in a nature-filled setting. She attended with her boyfriend, actor Nat Wolff, and shared the front row with her parents, Maggie Baird and Patrick O’Connell.
Claudia Sulewski wears Oscar de la Renta wedding dresses
Sulewski wore several Oscar de la Renta dresses throughout the weekend of celebrations. For the ceremony, she chose a strapless ball gown featuring a drop-waist bodice and an elegant scarf around her neck.
During her final fittings for an exclusive interview with Vogue, the Shrinking actress described her reaction to trying on the dress for the first time: “We were putting it on and I said, “this dress has something that simply calls for a minute of silence””.
Billie Eilish also joined the fittings by video call and became emotional when she saw Sulewski in the gown. “Oh my God, I can’t believe it. You look like an angel”, she told her now sister-in-law.
Finneas and Claudia Sulewski’s relationship timeline
Finneas and Sulewski met through a dating app in 2018. Shortly afterward, Finneas wrote the song “Claudia”, inspired by her. Sulewski was also the muse for “Mona Lisa, Mona Lisa”, released in 2022, and appeared in its music video.
Finneas and Sulewski became engaged in September 2025 during a mountain date. They announced the engagement with the message “forever and ever 9.22”. After eight years together, the couple is now officially married, surrounded by family and friends from the entertainment industry.
