"I thought of Zooropa at the time as a work of genius. I really thought our pop discipline was matching our experimentation and this was our Sgt Pepper. I was a little wrong about that."
- Bono on the Zooropa album
wist je dat
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.