Phoenix 2 - With Or Without You

"Vertigo is deceptively simple. That riff, you can think, 'Aw yeah, another rock song.' It doesn't become great the first time you hear it. It becomes great the thousandth time you hear it. And that's true of a lot of rock riffs. So we have to get the density of exposure for that to be a hit." - Bono, 2005