"People often ask, 'Why don't you do some stuff like you did on The Joshua Tree?' The truth is, we couldn't. We wouldn't know how to repeat ourselves."
- Larry Mullen Jr.
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.