"They continuously experiment and try different ways of playing and arranging the songs, until the very last moment. The guitar overdub on 'Mysterious Ways', for example, went down after the mix was finished."
- Robbie Adams, engineer on the Achtung Baby recordings
did you know
The lyric "3:33 when the numbers fell off the clock face" from Unknown Caller is a reference to the Bible verse Jeremiah 33:3. Bono refers to it as "God's phone number".