"You have no choice of subject matter. You write what's in your heart and on your mind--unless of course it's crap, in which case it means you've thought about it too much."
- Bono in an on-line chat in June of 1999
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.