The album Songs of Innocence by U2 is digitally released at no charge to all customers of the iTunes Music Store, appearing automatically in the "purchased" section of over 500 million users worldwide.

Songs of Innocence is the thirteenth studio album by the 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. After the surprise announcement of the album at an Apple product launch event, it was digitally 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 was released to retailers by Island and Interscope Records. The digital release made the record available to more than 500 million iTunes customers, for what Apple's CEO Tim Cook called "the largest album release of all time".

U2 are an Irish rock band formed in Dublin in 1976. The group comprises Bono, the Edge, Adam Clayton, and Larry Mullen Jr.. Initially rooted in post-punk, U2's musical style has evolved throughout their career, yet has maintained an anthemic quality built on Bono's expressive vocals and the Edge's chiming, effects-based guitar sounds. Bono's lyrics, often embellished with spiritual imagery, focus on personal and sociopolitical themes. Popular for their live performances, the group have staged several elaborate tours over their career.

The iTunes Store is a digital marketplace selling songs, albums, music videos, ringtones and alert tones. It was launched by Apple Inc. on April 28, 2003, for Mac OS X, and on October 16, 2003, for Microsoft Windows. It launched as a mobile application with iOS on June 29, 2007.

September 9 is the 252nd day of the year in the Gregorian calendar; 113 days remain until the end of the year.