The titular song from Billie Eilish’s sophomore album of the same name was first teased in the February 2021 documentary, The World’s a Little Blurry. In a clip from the documentary, Eilish had this to say about the track:

The whole song is just more like nothing even specific that they did, you’re just not happy being with them. Can’t even explain it.

In a February 2021 interview on Eilish’s documentary, The World’s a Little Blurry, the film’s director, R. J. Cutler, hinted that the unreleased songs that appeared in the documentary may end up on Eilish’s album:

…and you see them writing material that perhaps you’ll see on a later album.