Angry Apple customers have taken to social media to complain about digital violation after millions of copies of U2's new album were downloaded on to people's devices without their permission.
Songs of Innocence, U2's 13th album, was released, free, on Wednesday to help promote the launch of Apple's next-gen hardware.
According to the Wall Street Journal, the deal cost Apple US$100 million ($123 million).
The album is set to be followed up by a second, called Songs of Experience.
"If you like Songs of Innocence, stay with us for Songs of Experience. It should be ready soon enough," Bono said this week in a statement after the release of the spam album.