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".
The Invisible Men The Invisible Men are a Grammy-nominated multiplatinum songwriting and music production trio, consisting of Jason Pebworth, George Astasio and Jon Shave. The trio are responsible for over 30 million record sales worldwide and have frequently ranked among "Music Week's" Top Songwriters. They co-produced and co-composed Iggy Azalea's seven week US #1 single "Fancy" (featuring Charli XCX) which has sold in excess of 9.1 million copies digitally worldwide to date, making it one of the best-selling singles of all time and the seventh best-selling single worldwide of 2014 , and her US million-selling debut single, "Work", as well as a vast portion of Azalea's debut album "The New Classic".