Billie Eilish is finishing off her massive year with some brand new material.

The 17-year-old pop star scored huge success with her debut album 'When We All Fall Asleep, Where Do We Go?' when it was released in March, and fans have been champing at the bit for more songs.

Luckily, Christmas has come early as she's released a new tune as promised earlier this week.

As with the her previous material, the moody 'Everything I Wanted' was written and produced with her brother Finneas O'Connell.

"Pretty much that whole song is about me and Finneas' relationship as siblings," she said. "We started writing it because I literally had a dream that I killed myself and nobody cared and all of my best friends and people that I worked with basically came out in public and said, like, “Oh, we never liked her.” In the dream, the fans didn’t care.

"The internet shit on me for killing myself, all this stuff, and it really did mess me up. I mean, the message behind the song is like... my brother is my best friend, and I have these dreams and these things happen, and no matter what happens, he’s gonna always be there for me, and it’s the same the other way around.”

Hear it below: