 A song introduced by Bono as "North Star" was played in Turin during the U2 360° Tour; however, it is unknown whether or not this is the same song that was worked on during the sessions.Other tracks, such as "Shark Soup" (another version of "Vertigo"), "Lead Me In The Way I Should Go", and "You Can't Give Away Your Heart", were referenced in the media and by the band themselves, but have not been released.The very earliest versions of "Love and Peace or Else" originated during the recording sessions for "All That You Can't Leave Behind".