"We went to a karaoke bar the night we finished it. Edge wouldn't let me seize the microphone from a lad who was doing Vertigo"
- Bono on 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.