Knockin’ Heart is the first single from Hamilton Leithauser’s March 7 album This Side of the Island, produced by the prolific Aaron Dessner. The collaboration resulted in a record that is both timeless and contemporary, cementing both as versatile and enduring artists in contemporary music. Known for his evocative lyricism, quick wit, and distinctive voice, Leithauser has been a significant force in rock 'n' roll since the early 2000s NYC scene, transitioning smoothly from his band's successes to a flourishing solo career. Knockin’ Heart is sung by an estranged, stoned lover on their way home, who is dying to get a message through to someone who is probably not listening.