"We went to a karaoke bar the night we finished it. Edge wouldn't let me seize the microphone from a lad who was doing Vertigo"
- Bono on Songs of Innocence
Get On Your Boots is about Bono taking his family on vacation to France and witnessing warplanes flying overhead at the start of the Iraq War. The chant "let me in the sound" was developed late in the recording sessions and became a theme throughout parts of the album.