FINNEAS and Claudia Sulewski are married after celebrating their wedding at San Ysidro Ranch in Montecito, California. Details shared from the ceremony confirmed that Billie Eilish, FINNEAS’ sister and longtime musical collaborator, officiated the outdoor event.
The wedding brought together relatives, close friends and several well-known guests. Photos and details released from the celebration showed Sulewski wearing custom Oscar de la Renta designs during the wedding weekend, while the setting reflected the couple’s preference for an intimate outdoor ceremony.
FINNEAS and Sulewski began dating in 2018 and have frequently appeared together at public events over the years. Their relationship has also crossed into creative work, with Sulewski appearing in projects connected to the musician and producer.
The couple became engaged in September 2025 before moving forward with their California wedding. Guests at the celebration included Justin and Hailey Bieber, Kristen Bell, Dax Shepard and Emma Chamberlain.
The marriage marks a new chapter for the longtime couple after several years together.