Justin Bieber shares photos with wife Hailey from Billie Eilish's brother's wedding

Justin Bieber and Hailey Bieber joined stars at Finneas O'Connell and Claudia Sulewski's Montecito celebration, where Billie Eilish officiated the ceremony
Hailey Bieber was seen in a lime green gown as she joined Justin Bieber at Finneas O'Connell's wedding (Getty Images)
Hailey Bieber was seen in a lime green gown as she joined Justin Bieber at Finneas O'Connell's wedding (Getty Images)

MONTECITO, CALIFORNIA: Justin Bieber and wife Hailey, who were among the star-studded guests at Billie Eilish's brother Finneas O'Connell's wedding to longtime girlfriend Claudia Sulewski on Saturday, August 29, shared photos from the special day on Instagram.

The couple first met in 2018 on the exclusive dating app Raya, although Claudia already knew of Finneas through mutual friends before they eventually matched on the app and began their relationship.

Justin Bieber and Hailey Bieber attend Finneas O'Connell's wedding

Bieber was seen cozied up to his model wife during the celebration, wearing a classic black suit and tie with black sunglasses, while Hailey looked chic in a lime green gown with a low-cut neckline. She wore her hair slicked back and carried a beige umbrella.

Bieber and Eilish share a close, supportive friendship that began with her being a devoted childhood fan and grew into a full-circle professional bond. The two first met at Coachella in April 2019 and have remained friends ever since.

Previously, Eilish teared up when Bieber pulled her on stage for a performance of 'One Less Lonely Girl' on April 18. The performance was part of his closing set at Coachella weekend two.

Finneas and Sulewski exchanged vows in a lush garden setting at San Ysidro Ranch in Montecito, surrounded by family and friends. His sister, Eilish, reportedly had the honor of officiating the ceremony while wearing an off-the-shoulder, olive-green gown, ahead of her big-screen acting debut in the upcoming movie 'The Bell Jar.'

(Screengrab/MaggieBaird/Instagram)
Billie Eilish teared up after Justin Bieber pulled her on stage for 'One Less Lonely Girl' during his Coachella weekend two closing set on April 18 (Screengrab/MaggieBaird/Instagram)

Her 31-year-old actor boyfriend, Nat Wolff, was also in attendance. The beauty influencer bride had four dresses custom made for the weekend event by Oscar de la Renta, per 'Vogue', beginning with a bias-cut creation with a draped back for the rehearsal dinner, followed by a ballgown with a drop-waist bodice and bell-shaped skirt for the ceremony.

She then wore a reception dress with feathers to get the party started before ending with a pink and dove-gray after-party frock.

LOS ANGELES, CALIFORNIA - FEBRUARY 01: (L-R) Justin Bieber, Billie Eilish, and Hailey Bieber attend the 68th GRAMMY Awards at Crypto.com Arena on February 01, 2026 in Los Angeles, California.  (Photo by Kevin Mazur/Getty Images for The Recording Academy)
Justin Bieber, Billie Eilish, and Hailey Bieber attended the 68th GRAMMY Awards at Crypto.com Arena on February 01, 2026, in Los Angeles, California (Kevin Mazur/Getty Images for The Recording Academy)

Finneas O'Connell and Claudia Sulewski's wedding journey

Finneas, born Finneas Baird O’Connell, is a singer, songwriter and record producer best known for his collaborative work with his 10-time Grammy Award-winning sister. He wore a classic black tuxedo for his wedding.

The couple have been together since 2018, with Finneas revealing to 'BuzzFeed' that he couldn't get the brunette beauty out of his mind and wrote his song 'Claudia' within hours of meeting her, while Sulewski also inspired his 2022 song 'Mona Lisa, Mona Lisa' and starred in and directed its phone-recorded music video.

Last year, Finneas used their seventh anniversary as a "Trojan horse" to propose to Sulewski. He popped the question last October after seven years of dating and later revealed he had staged the proposal like a highly calculated, secret operation.

"I think she thought we were going to go do a little staycation at a beach," Finneas said. He drove her to the airport, where they got on a helicopter and traveled to a private campsite in the mountains. A private chef prepared food before leaving, and the couple spent the day in nature before he asked her to marry him.

Finneas was nervous about hiding the ring. "The ring was in a sock wrapped around another sock in my suitcase," he quipped, recalling how he hid behind a bush to arrange the ring before proposing.

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