A Union in Montecito
Finneas O’Connell and Claudia Sulewski married this past Saturday in Montecito, California. The producer and artist exchanged vows with the YouTuber and entrepreneur after eight years of dating. Their wedding ceremony included a personal touch as O’Connell’s sister, Billie Eilish, officiated the proceedings. Family and close friends gathered for the private event to witness the couple finalize their commitment to each other.
The guest list featured several notable figures from the entertainment industry. Attendees included actors Nat Wolff, Nina Dobrev, and Kristen Bell. Reality star and creator Emma Chamberlain also appeared alongside Justin and Hailey Bieber. The ceremony marked a high-profile moment for the couple who announced their engagement back in September 2025.
Fashion and Planning
Claudia Sulewski chose Oscar de la Renta for her wedding attire. She cycled through four distinct looks across the weekend festivities. One gown served for the rehearsal dinner, while another was reserved for the ceremony and the couple's first dance. She wore a third piece for the reception and ended the celebration in a final look for the after-party. During the final fitting for her ivory ceremony dress, Sulewski video-called Eilish to share the design.
O’Connell previously spoke about the stress of managing the surprise proposal. He admitted to Jimmy Fallon in October 2025 that he struggled to maintain the secret for several weeks before he finally asked Sulewski to marry him. The couple first met on a dating app in 2018. They quickly solidified their connection, and O’Connell began drafting his song "Claudia" on the very day they were first introduced.
A Shared Creative History
Their relationship has long intersected with their creative output. O’Connell’s 2019 track "Claudia" serves as a musical chronicle of their early days, detailing his immediate attraction to her. The couple also shares professional milestones, including the purchase of their first home together in 2019. In 2022, Sulewski appeared in the music video for O’Connell’s song "Mona Lisa, Mona Lisa," which provided fans a glimpse into their life.
Eilish’s role as the officiant is the latest chapter in the siblings' close professional and personal bond. The duo has frequently collaborated on award-winning music projects throughout the last decade. As they transition into this new phase of their lives, the focus remains on their ongoing creative partnership and their new status as a married couple. The ceremony in Montecito represents a settled point for a pair that has navigated public attention throughout their eight-year history.