Billie Eilish's brother, Finneas O'Connell, and Claudia Sulewski have been engaged for almost a year. In a new interview, the groom revealed all the details of his proposal, which took place in the mountains last September. The 28-year-old musician proposed to 30-year-old Sulewski by getting down on one knee seven years after the couple met on a dating app. O'Connell talked about his engagement in a new interview on Wednesday, June 10. He explained that since they had already celebrated their anniversary, the girl would not suspect that he would propose during their date. "I think she assumed we were going to have a little beach getaway," O'Connell said. "I was hoping she would be distracted by work emails while I prepared everything for the trip. I took her to the airport. She asked, 'Why are we here?' We got into a helicopter, and I said, 'We are flying in a helicopter to a private campsite in the mountains,' and I brought along a personal chef. He cooked for us, and then he got back in the helicopter and left. We were alone on the mountainside, and then we just had a wonderful day outdoors. And then I proposed to her." O'Connell also revealed where he hid the ring. "The ring was in a sock, wrapped around another sock, in my suitcase. And just when it was about to happen, I thought, 'All day I’ve been doing nothing but lying.' I ran and heard the ring clinking in the box in my pocket. So I hid behind a bush, took out the ring, and put it in my pocket, and then I went to my fiancée." O'Connell and Sulewski announced their engagement in a joint social media post two days after the proposal. Billie Eilish Pirate Baird O’Connell (born December 18, 2001, Los Angeles, California, USA) is an American singer and songwriter. She first gained public attention in 2015 with her debut single "Ocean Eyes," written and produced by her brother Finneas O’Connell, with whom she continues to collaborate in music and concerts. In 2017, her first EP, Don’t Smile at Me, was released, achieving commercial success and entering the top 15 charts in many countries, including the USA, UK, Canada, and Australia.