Finneas O'Connell and his long-term girlfriend Claudia Sulewski are engaged

In a joint Instagram post on Wednesday (24.09.25), they wrote: "forever and ever 9.22 (sic)."

The cute photo carousel featured snaps of the couple sharing a smooch on a mountain hilltop, as well as Finneas - who makes music under his first name - and Claudia riding in a helicopter, and his fiancee showing off her sparkly engagement ring.

And the upload sparked thousands of congratulatory messages in the post's comments section, including from their famous friends.

TV personality Amanda Kloots, 43, wrote: "Omg YOU GUYS!!!!! Congratulations!!!! (sic)"

Singer Renee Rapp, 25, penned: "Holy s*** congratulations."

And Influencer-and-entrepreneur Paige Lorenze, 27, penned: "Omg!!!"

Finneas and Claudia's fans also congratulated the couple in the post's comments section.

One user said: "best news of my life. u guys are perfect congratulations (sic)."

A second person wrote: "Omgg how adorable, congrats! (sic)"

And a third follower commented: "FINALLY WE'VE BEEN WAITING FOR (sic)."

Finneas - whose sister is 23-year-old singer Billie Eilish - met Claudia on a dating app in 2018, and they quickly became interested in each other.

A year later, the 10-time Grammy award-winning artist revealed he penned the song Claudia just hours after meeting his now-fiancee.

He told Buzzfeed at the time: "I wrote the song Claudia about Claudia the day that I met Claudia, and I sent it to her the night that I met Claudia.

"I sent her the first part, and she texted me back, 'You're trouble,' and then the chorus, which is the, 'I'm in trouble now,' part.

"I was like, 'Oh, that's - cheers!'"

Also in 2019, Finneas and Claudia bought a house together and rescued a dog, a pitbull named Peaches.

The singer's 2022 song Mona Lisa, Mona Lisa was also about Claudia, and she starred-and-directed the music video for the track.

Speaking about the scene where the couple kiss, cuddle, and pose for a photo together in Paris, France, she told Vogue in July that year: "It's a gushy video, for sure!"

Finneas added: "We're pretty deep in it at this point-we've been dating for almost four years, so I think the cat's out of the bag."