"I know U2 go into every album like it's their last one but even more this time I wanted the people around me that I loved to know exactly how I felt. So a lot of the songs are kind of letters, letters to Ali, letters to my sons and daughters, actually our sons and daughters."
- Bono on Songs of Experience
did you know
U2 was the first artist using a round-shaped stage, they were using it during the Elevation tour (2001).