Opening for U2 has to be one of the most difficult propositions in the world. Historically, bands that have opened for U2 have not fared well thereafter... the pixies broke up...bjork left the sugarcubes... public enemy broke up... gwen left no doubt (remains to be seen, I suppose)... are bands cursed once they've opened for U2? (Note: this is not a diss on the band.) Who was the worst opening act for a U2 concert? The best?