Who Is Claudia Sulewski? Meet Finneas’ Wife After Billie Eilish Officiates Their Wedding
Finneas O’Connell and Claudia Sulewski are married. The two wed on Aug. 29 at the San Ysidro Ranch in Santa Barbara, California, in a ceremony officiated by Finneas’ sister and frequent musical collaborator, Billie Eilish. The couple’s parents, Maggie Baird and Patrick O’Connell, attended to watch their son exchange vows, and the pair’s two dogs, Peaches and Moose, were also part of the celebration.
Who Is Claudia Sulewski?
Sulewski, 30, built her career as a content creator before moving into acting. She and Finneas met on a dating app in 2018. Their relationship became publicly known soon after, and the two have collaborated professionally over the years; Sulewski starred in and directed the music video for Finneas’ 2022 solo single “Mona Lisa, Mona Lisa.” Finneas has said that he wrote a song titled “Claudia” the same day the two met, sending her the opening verse before their first date and the chorus soon after.
Inside the Wedding
The wedding drew a guest list that included Justin and Hailey Bieber, Emma Chamberlain, Rachel Sennott, Rebecca Black, Jason Sudeikis, Kristen Bell, Dax Shepard, Devon Lee Carlson, Stassie Karanikolaou, and Jesse Jo Stark. Eilish attended with her boyfriend, Nat Wolff, in addition to her role officiating the ceremony. Sulewski wore four different Oscar de la Renta looks across the wedding weekend: one for the rehearsal dinner, one for the ceremony and first dance, one for the reception, and one for the afterparty.
The Engagement
Finneas proposed to Sulewski on September 22, 2025, after seven years together. Sulewski shared the news on social media with the caption “forever and ever 9.22,” alongside photos from the proposal. The couple began searching for a wedding venue in January 2026 and marked the lead-up to the wedding with a joint bachelor and bachelorette trip to Cabo San Lucas.
Finneas is a Grammy-winning musician and producer best known for co-writing and producing much of his sister Billie Eilish’s catalog, giving the wedding significance beyond a typical celebrity ceremony. Billie Eilish stepping into the officiant role underscores how closely the siblings’ personal and professional lives remain intertwined, even as both have built independent public profiles. The event also brought together a cross-section of entertainment and internet culture, from established musicians to actors and digital creators, reflecting the overlapping social circles both Finneas and Sulewski have built over the past several years.
Neither Finneas nor Sulewski has publicly detailed specific plans following the wedding. Finneas continues to work on music projects, including his ongoing collaborations with Eilish, while Sulewski continues her work as an actress and creator. Additional details about the ceremony, including further photos and firsthand accounts from guests, may emerge in the coming days as attendees share their own recollections of the event.
