"It's a sort of three year cycle. We spend like a year writing the songs, then a year recording them, and then a year selling them door to door." - Bono, 2009
did you know
Many musicians have been influenced by the work of U2. There are several cover versions of U2 songs by bands such as Pet Shop Boys, Pearl Jam and The Chimes, and musicians such as Cassandra Wilson, Joe Cocker and Johnny Cash.