The couple got engaged during a romantic sunset proposal last year.

The music producer and YouTuber have been together since 2018.

Finneas, the brother of Billie Eilish, proposed to Sulewski in September 2025 following seven years of dating ...

Finneas O’Connell and Claudia Sulewski’s Aug. 29 wedding was officiated by his sister, Billie Eilish ...

New photos from Finneas and Claudia Sulewski's wedding weekend showed the groom's sister Billie Eilish's second gown for the ...

And Finneas’s sister, Billie Eilish, officiated!

The model pulled out another vintage gem for the occasion ...

Eilish wore an olive green dress as she played a special part in her brother and music collaborator's nuptials.

Classic elegance and modern-day sophistication meet in Finneas and Claudia Sulewski's luxe yet laid-back multi-day wedding ...

For the second wedding in one month, the model has chosen vintage from the Italian fashion brand.

The couple tied the knot in an outdoor ceremony in Montecito on Saturday, Aug. 29 ...

Billie Eilish officiated the wedding of her older brother and longtime musical collaborator, Finneas O’Connell, as he married ...