"Us" was originally released on the 2004 album 'Soviet Kitsch'. It also appears on Regina Spektor's UK compilation album Mary Ann Meets the Gravediggers and Other Short Stories. The song is notable for its use of a string quartet in addition to Spektor's usual piano and vocals. The track opens the film '(500) Days of Summer'. The official video, Spektor's first, parodies the silent film 'Le Locataire Diabolique'.