Billie Eilish’s brother, Finneas O’Connell, has married his longtime girlfriend, Claudia Sulewski, in a star-studded ceremony in California.
Finneas and Claudia tied the knot on Saturday at San Ysidro Ranch in Santa Barbara.
The ‘Birds of a Feather’ singer Billie Eilish reportedly officiated the outdoor wedding ceremony for her brother and his bride.
Celebrities attend Finneas and Claudia’s wedding
Several well-known celebrities attended the wedding. The guest list reportedly included Justin Bieber and his wife Hailey Bieber.
Dax Shepard, Kristen Bell, Nina Dobrev, Emma Chamberlain and Jason Sudeikis were also among the guests. Carter Gregory, Stassie Karanikolaou and Rachel Sennott also attended.
Eilish’s boyfriend, Nat Wolff, was also present at the celebration.
Claudia wore several dresses designed by Oscar de la Renta during the wedding.
One of her standout looks was an off-the-shoulder ball gown for the main ceremony. The elegant dress featured a drop-waist bodice and was completed with a scarf-style neckpiece.
Eilish praised her future sister-in-law’s gown in an interview with Vogue. The Grammy-winning singer said the dress was so impressive that it demanded a moment of silence. She also described Claudia as looking like an angel and expressed her love for her.
Finneas and Claudia’s relationship
Finneas and Sulewski first met through a dating app in 2018.
Their relationship inspired Finneas’ music. Just hours after meeting Caludia in person, he wrote the song titled Claudia and sent it to her. He later shared the story during a 2019 interview with BuzzFeed Celeb.
Claudia also became the inspiration behind Finneas’ 2022 song Mona Lisa, Mona Lisa. She later appeared in the track’s official music video.
The couple continued their relationship for several years before getting engaged in September 2025.
Finneas proposed during a romantic mountaintop date. The couple later announced their engagement through a joint social media post, writing ‘forever and ever 9.22’.
Their California wedding has now marked the next chapter in their lives that began eight years ago.
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