Research company Kantar found that 24% of all iOS music listeners in the US listened to the band's Songs of Innocence album within 5 months of its release.
In fact, Kantor found that even as recently as January, more than twice the number of people listened to U2 than the current hottest artist on the planet, Taylor Swift.
T he study found that nearly every iOS owner who listened to U2 in that time period listened to at least one song from Songs of Innocence.
A lot of skeptics have since blasted the study as being biased towards English speakers or towards U2, but the fact remains that at the end of the day the giveaway did its job to get the album in front of a very large audience, and much of that audience actually listened. That's all an artist can ask from any promotion.
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