Finneas O'Connell married his longtime girlfriend Claudia Sulewski on Saturday. And the singer-songwriter's wedding was officiated by none other than his sister, pop superstar Billie Eilish.
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Billie Eilish Officiated Her Brother's Wedding
As PEOPLE reports, the wedding took place in Montecito, California, on Aug. 29. Eilish officiated the ceremony in a sage-green dress.
Of course, Eilish wasn't the only celebrity at the event. She presided over the nuptials with Justin and Hailey Bieber in the crowd. Other attendees included Kristen Bell and her husband, Dax Shepard, as well as Ted Lasso star Jason Sudeikis.
O'Connell and Sulewski shared the news of their engagement on social media last September. The couple dated for seven years before deciding to tie the knot.
Sulewski is an actress and the founder of CYAKLAW Skincare. Reports say she wore four different Oscar de la Renta dresses over the course of the wedding weekend.
Eilish and Her Brother Have a Strong Bond
It's no surprise that Eilish played a key role in her brother's wedding. In addition to being siblings, they are also creative partners. He is credited as a co-writer and producer for nearly all of her musical projects. She also considers her brother to be her "best friend."
"He's four years older than me, and we've been best friends kind of forever," she said. "We started writing music together when I was 13, and he was 18 or 17, and he produces everything. He's the only reason I'm anywhere in the whole world. He's probably the only reason I'm alive."
O'Connell is also an artist in his own right. He has not only written the music for the Netflix series Beef and the Pixar film Turning Red but he had also released two successful studio albums, Optimist and For Cryin' Out Loud!
He once said, "There's a lot of bulls*** articles about me now, about how I'm 'not just Billie Eilish's brother' — and just being Billie Eilish's brother is all I ever want to be. I love Billie more than anybody else, and I'm so grateful to you. I love you."
