Bono has defended U2's decision to release their latest album for free via iTunes, saying it's the band's job to "stir things up".
As reported by NME.com, the front man for the legendary Irish group told Jo Whiley's BBC Radio 2 show that last week's give away of their 13th album Songs of Innocence was "punk rock".
"That's always been the way. It was the same on our first album. That was kind of why you got into a band - to stir things up and annoy people," he told Whiley.
"That's the whole punk rock thing ... the only thing that could have gone wrong would have been being ignored."
Some iPhone users were not happy that Songs of Innocence was automatically added to their iTunes music library, free of charge.