"Pretty much every week for the last four years, I've just wanted to kill myself because I'm obsessed"
- The Edge on recording Songs of Innocence
did you know
In late 2004, "Mercy", an unreleased track taken from the How to Dismantle an Atomic Bomb sessions, surfaced on the Internet through a fan who had been given a copy of the album containing the extra track. The track is of less than standard audio quality, but managed to become a favorite on fan websites.