U2start liveshow: The rise of Popmart (5 March)

During the recording sessions of Achtung Baby, the band were working on a primitive version of Mysterious Ways called 'Sick Puppy'. During these versions, The Edge improvised a chord progression that the rest of the band worked with. From that chord progression the song 'One' was born, ultimately changing the outlook of the sessions and more importantly, keeping the band together.