But it seems negative remarks didn't stop millions from listening to it.
according to Eddy Cue, Apple's senior vice president of Internet software and services. About 5% of overall Apple users downloaded Songs of Innocence in its entirety; it was downloaded in full 26 million times.
"Previously, 14 million customers had purchased U2's music since the opening of the iTunes Store in 2003, Cue told Billboard.
Of course, 81 million is only about 16% of 500 million users, but Apple's free gift means the music spread to significantly more people than it would have otherwise.
"Apple is a tech company fighting to get musicians paid," U2 said in a statement to Billboard. "The idea that they wanted to make a gift to the very people that actually purchase music is both beautiful and poetic, and for that we are very grateful."