"Rick Rubin has a larger looming presence on this album than his 'thank you' deserves. He asked 'Why can't more people cover U2 songs?' And it's because, with all the great sounds and arrangements, you can forget that there isn't a song there."
- Bono on Rubin's influence on Songs of Innocence
did you know
According to the booklet of 'Walk On', U2 says that the song is dedicated to Aung San Suu Kyi, in some parts of the lyrics U2 mentions the struggle of this woman to free her country.