Finneas Marries Claudia Sulewski in Ceremony Officiated by Billie Eilish

Congratulations are in order for Finneas and his longtime love, Claudia Sulewski, who have officially tied the knot.

The Grammy-winning singer and producer, 29, married the YouTuber, actress and CYKLAR Skincare founder, 30, at San Ysidro Ranch in Santa Barbara, California, on Saturday (Aug. 30), according to TMZ.

The intimate ceremony was officiated by Finneas’ superstar sister and longtime musical collaborator, Billie Eilish. Their parents, Maggie Baird and Patrick O’Connell, were also there to watch their son exchange vows.

The couple celebrated with family, celebrity friends and their dogs, Peaches and Moose. Among the famous guests were Justin and Hailey Bieber, Rachel Sennott, Emma Chamberlain, Rebecca Black, Jason Sudeikis, Kristen Bell, Dax Shepard, Devon Lee Carlson, Stassie Karanikolaou and Jesse Jo Stark. Eilish also attended with her boyfriend, Nat Wolff.

For the special occasion, Sulewski wore four Oscar de la Renta looks throughout the wedding weekend: one for the rehearsal dinner, one for the ceremony and first dance, one for the reception and one for the after-party, according to Vogue.

Finneas and Sulewski announced their engagement in September 2025 after seven years together, sharing an Instagram post captioned “forever and ever 9.22.” The gallery opened with a photo of the couple hugging on a hillside at sunset, followed by a selfie of the two sharing a sweet kiss and another showing Finneas getting down on one knee to propose.

The pair met on a dating app in 2018, with Finneas telling BuzzFeed in 2019 that he wrote a song in her honor, “Claudia,” within hours of meeting her.

“I wrote the song Claudia about Claudia the day that I met Claudia, and I sent it to her the night that I met Claudia,” he said at the time. “I sent her the first part and she texted me back, ‘You’re trouble.’ And then the chorus, which is the, ‘I’m in trouble now’ part. I was like, ‘Oh, that’s… cheers!’”

Since then, the lovebirds have also collaborated creatively, including on his 2022 solo song “Mona Lisa, Mona Lisa,” whose intimate video Sulewski starred in and directed.