This is about the ambition and dedication required to be a successful band. It also criticizes American preachers who swindle followers out of their money.
This features the "Bo Diddley beat", a rhythm made famous by Diddley. Other songs featuring this beat include George Thorogood's "Who Do You Love" and The Rolling Stones' "Not Fade Away."
Incorporates a blues style. U2 became interested in American forms of music - Gospel, Blues, Folk - after touring there in the early and mid '80s.
The Edge has said the guitar riff is influenced by The Stooges' (Iggy Pop's band) "1969."
This was U2's first #1 hit in England.