Transcript for Apple Event Surprise! U2 Drops New Free Album
We can't get enough apple tonight, because after their big product launch today, the band u2 helped the crowd celebrate in style and then the band made an announcement of their own. Bon O's fans now wondering, is he trying to be the new beyonce? ? apple's ce Tim cook calls u2 one of the best bands of all time. Today, they lent a Little Rock and roll attitude to a historic event. Wasn't that the most incredible single you've ever heard? Reporter: U2 fans going wild about the surprise performance. But that wasn't all. The band hasn't put out an album in years. Turns out there's a reason why. And it's called "Songs of innocence." Very excited about it, the question is now -- zen master -- how do we get it to as many people as possible because that's what our band is all about. Reporter: All that mutual admiration culminating in a collaboration. Their mission? Get the album to as many people as possible for free. I do believe you have over a half a billion subscribers to itunes, so -- could you get this to them? Sure, we could do that. Reporter: With a click of a button, it was done. And tonight, itunes customers in 119 countries have one extra reason to rock. ?
This transcript has been automatically generated and may not be 100% accurate.