United Kingdom, Aug. 30 -- Finneas O'Connell and Claudia Sulewski are married.

The 29-year-old musician and 30-year-old YouTube star tied the knot in a beautiful outdoor ceremony in Montecito, California, on Saturday (29.08.26) with his 24-year-old sister, singer Billie Eilish, officiating in front of family and friends.

Celebrity guests included couples Justin Bieber, 32, and Hailey Bieber, 29, and Kristen Bell, 46, and Dax Shepard, 51, and 25-year-old influencer Emma Chamberlain.

Per Vogue, Claudia stunned in a custom-made ivory silk faille Oscar de la Renta ballgown, featuring a sheer veil and a long train, while Finneas looked dapper in a black tuxedo.

It was one of four looks from the fashion house that she wore throughout the we...