Finneas O'Connell Marries Claudia Sulewski

Finneas O'Connell, the 29-year-old musician and brother of pop star Billie Eilish, married his longtime girlfriend, Claudia Sulewski, on Saturday, August 29, 2026. The couple exchanged vows in an outdoor ceremony at a private estate in Montecito, California, with Eilish officiating the wedding. The ceremony was attended by a large gathering of family and friends. Among the celebrity guests were Justin and Hailey Bieber, Kristen Bell and Dax Shepard, Emma Chamberlain, Jason Sudeikis, and Rachel Sennott. Eilish's boyfriend, Nat Wolff, was also present.