"The last two records were very personal, with a kind of three piece at their heart, the primary colours of rock - bass, guitars and drum. But what we’re about now is of the same order as the transition that took us from The Joshua Tree to Achtung Baby."
- Bono, September 2008
did you know
The lyric "3:33 when the numbers fell off the clock face" from Unknown Caller is a reference to the Bible verse Jeremiah 33:3. Bono refers to it as "God's phone number".