"Us" is the fifth track from American singer Regina Spektor's major label debut Soviet Kitsch. It was officially released as a single in 2006 for her UK compilation album Mary Ann Meets the Gravediggers and Other Short Stories by Regina Spektor. The song is notable for its use of a string quartet in addition to Spektor's usual piano and vocals. The song was also used in a UEFA Champions League Final montage, by ITV. This song was used in the film (500) Days of Summer.