Billie Eilish officiates her brother Finneas O'Connell's wedding to Claudia Sulewski

Grammy-winning music producer Finneas O'Connell married his longtime girlfriend, Claudia Sulewski, on August 30, TMZ reported. The wedding ceremony, which took place in California, was officiated by Finneas' sister Billie Eilish. Celebs including Justin and Hailey Bieber, Kristen Bell, Nina Dobrev, and Emma Chamberlain attended the ceremony. Finneas and Claudia met on a dating app in 2018.