" Tearin' Up My Heart " is a song by American boy band NSYNC , from their eponymous debut studio album, 'N Sync (1997). The song was written by Max Martin and the producer Kristian Lundin . It was released by BMG Ariola in Germany on February 10, 1997, and by RCA Records in the United States on June 30, 1998, as the second single from the album. A dance-pop and teen pop song, it contains a pop-sounding melody, a strong beat and a funk -styled pre-verse breakdown, with vocal harmonies performed during the refrain. The lyrics depict the ambiguous future of a romantic relationship. - source