High Quality Content by WIKIPEDIA articles! "Exit" is a song by rock band U2. It is the tenth track on their 1987 album The Joshua Tree. "Exit" originated as a lengthy jam in The Joshua Tree sessions, which was edited from a single take. The lyrics, which portray the mind of a serial killer, were inspired by lead singer Bono`s reading of Norman Mailer`s 1980 novel The Executioner`s Song, and other related works. In his trial for the murder of Rebecca Schaeffer, Robert John Bardo used "Exit" as part of his defence, claiming the song had influenced his actions.