While her new album When We All Fall Asleep, Where Do We Go? arrived back in March, Billie Eilish on Wednesday released a new song to cap what's been an extraordinary year.

The track, titled "Everything I Wanted," follows her No. 1 hit single "Bad Guy." It was co-written by the 17-year-old singer and her brother FINNEAS both at their home studio in Highland Park and on the road over the summer. It's described as a tribute to their unique kinship as family and collaborators.

"This song is one my brother and I wrote about each other," says Eilish of the new track. "No matter what happens, we always have been and will be there to make it better."

Hear "Everything I Wanted" below.