Through a combination of zealous righteousness and post-punk experimentalism, U2 became one of the most popular rock & roll bands of the '80s. Equally known for their sweeping sound as for their grandiose statements about politics and religion, U2 were rock & roll crusaders during an era of synthesized pop and heavy metal. And their lead singer, Bono, was a frontman who had a knack of grand gestures that played better in arenas than small clubs. It's no accident that footage of Bono parading with a white flag with "Sunday Bloody Sunday" blaring in the background became the defining moment of U2's early career -- there rarely was a band that believed so deeply in rock's potential for revolution as U2, and there rarely was a band that didn't care if they appeared foolish in the process.
If Paul and U2 got together, they should do "Sunday Bloody Sunday" and "Give Ireland Back To The Irish".