"That song 'MoFo' is hardcore. If I could put my whole life into one song, it'd be something close to that. It's a funny thing to be able to say - that a song sums you up - cause maybe that means you're not that interesting after all."
- Bono in 1997
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.