The Edge — Welsh Musician born on August 08, 1961,

David Howell Evans, better known by his stage name The Edge, is a British-born Irish musician and songwriter best known as the lead guitarist, keyboardist and backing vocalist of the rock band U2. A member of the group since its inception, he has recorded 13 studio albums with the band as well as one solo record. As a guitarist, the Edge has crafted a minimalistic and textural style of playing. His use of a rhythmic delay effect yields a distinctive ambient, chiming sound that has become a signature of U2's music... (wikipedia)

You see, rock and roll isn't a career or hobby - it's a life force. It's something very essential.
The big cop-out would be to accept popularity rather than opting to try to create potent work. It's so easy to do the popular thing, the expected thing, and that's where you start to cheat yourself - and your fans, in the end - because there's an inherent dishonesty in pandering and dishing up what everyone's expecting.
U2 albums never get finished. They just get released.
For me, looking back is akin to being on a tightrope and looking down. It doesn't help you in the present moment to deal with what you have to deal with in order to move forward.
Jazz came out of New Orleans, and that was the forerunner of everything. You mix jazz with European rhythms, and that's rock n' roll, really. You can make the argument that it all started on the streets of New Orleans with the jazz funerals.