"Right at the very end, somewhat as an afterthought, he yelled out, 'It's a beautiful day, it's a beautiful day.' And after that, we just kept chipping away till we had the song."
- Daniel Lanois, on how Bono came up with the hook for 'Beautiful Day'
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.