The lyrics refer to The Crucifixion of Christ. Band members Bono, The Edge, and Larry Mullen were members of a devout Christian group, and were struggling between their music and their faith. Much of October, which is just their second album, alludes to the Bible.
The Dublin group Some Kind Of Wonderful was brought in to play horns on this track.
Kid Rock's "All Summer Long" is a mashup of "Werewolves Of London" and "Sweet Home Alabama." The album it came from was released in October, 2007, but they held off until summer, 2008 for a more seasonable release.