Invisible was a song later included as a hidden track on which thirteenth U2 album?
Songs of Innocence (U2 album) Songs of Innocence is the thirteenth studio album by Irish rock band U2. Released on 9 September 2014, it was produced by Danger Mouse, with additional production from Paul Epworth, Ryan Tedder, Declan Gaffney, and Flood. The album was announced at an Apple Inc. product launch event and released the same day to all iTunes Store customers at no cost. It was exclusive to iTunes, iTunes Radio, and Beats Music until 13 October 2014, when it received a physical release on Island and Interscope Records. The digital release made the record available to over 500 million iTunes customers, for what Apple CEO Tim Cook marketed as "the largest album release of all time".
War Tour The War Tour was a concert tour by the Irish rock band U2, which took place in 1982 and 1983 in support of the group's third album "War". The tour took place in Western Europe, the United States, and Japan, with new material from "War" taking an increasing role as the tour progressed. Venues were mostly halls, but some arenas were introduced later on. U2's performances were very well received both critically and commercially, especially in the United States where U2 broke through to become a major act. Scenes of lead singer Bono waving a white flag during the song "Sunday Bloody Sunday" became an emblematic image of this phase of U2's career. It was their first tour as full-time headlining act and their first to be profitable.