U2's 13th studio album, "Songs of Innocence," is an album released a full 5 1/2 years after the commercial and critical disappointment of "No Line on the Horizon" with a list of producers as long as a Beyonce album. To that long gestation period Bono said, "Rumor has it we haven't made a U2 album...

In our Part 2 on No Line on the Horizon, we pick things up with the three more pop oriented songs the band wrote after leaving Fez, Morocco. Did the band panic and go chasing a hit? If so, they chose a very unrepresentative first single in Get On Your Boots. Things get a lot more interesting on...