"I thought 'pop' was a term of abuse, it seemed sort of insulting and lightweight. I didn't realise how cool it was. Because some of the best music does have a lightweight quality, it has a kind of oxygen in it, which is not to say it's emotionally shallow. We've had to get the brightly coloured wrapping paper right, because what's underneath is not so sweet."
- Bono describing the difference between the "surface" of the songs to "what lies beneath".
did you know
The song 'Zoo Station' is about the Zoological Gardens in the middle of Berlin, which was a train station and hangout for "societies' undesirables".