"You write a song because something hurts. I mean if you look at social change within America, that came from the Delta areas, the plantations or wherever. A lot of the change in America is rooted in blues music; that was what people listened to. It was the protest music of the time."
- Adam Clayton
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".