Singer Billie Eilish temporarily changed the scenes to assume a very special role in her family’s life. The singer served as an officer at the wedding of her older brother and musical collaborator, Finneas O’Connell, who married the actress, content creator and founder of the skin care brand Cyklar, Claudia Sulewski.
The link took place on the weekend at the exclusive San Ysidro Ranch ranch, located in the coastal town of Montecito, California. At an open-air ceremony, Eilish licked a dress in olive-green tone with a shoulder scout uncovered as she guided the couple in their exchange of marriage vows.
The celebration was attended by family members and an exclusive list of celebrities, including Justin and Hailey Bieber, Kristen Bell, Dax Shepard, Jason Sudeikis and Emma Chamberlain.
Also, the parents of the artists, Maggie Baird and Patrick O’Connell, witnessed the event alongside the couple’s pets, Peaches and Moose, who had a special participation wearing accessories to play with the wedding garment.
The girlfriend, Claudia Sulewski, glossed throughout the holiday weekend a total of four exclusive designs from the Oscar de la Renta signature, reserving for the main ceremony a gala dress of ivory-colour silk with low tail and plised fist.
Finneas and Sulewski started their relationship in 2018 after meeting through a dating app. After seven years of engagement, the producer proposed marriage to him in September 2025.