Billie Eilish has shared a clip of an unreleased Elliot Smith cover.

While appearong on Haward Stern’s Sirius XM show, Eilish played an audio voice not where she performed Smith’s “Let’s Get Lost,” showing off her vocal finesse with a simple piano line in the background. “I hear the nails,” Stern says, hearing Eilish’s fingernails on the piano keys. “It’s almost like drums.”

Listen to the clip below.