"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
did you know
Starting from Summer 2007 to Summer 2008, U2 had written and recorded 50-60 songs for a new record with Brian Eno and Daniel Lanois. 11 of these were released on 2009's No Line On The Horizon.