Bono's wife Ali Hewson has lifted the lid on their 23-year marriage and declared: "He's the love of my life because he makes me follow my dreams."
Ali, who met Bono in school when she was 12, said: "Our marriage has worked because we like each other, because we talk to each other and we are passionate about what we do. We allow each other to pursue our goals."
The mother-of-four revealed it isn't writing No1 albums and selling out world tours that motivates the couple -- but bringing up their kids to appreciate life.
She is determined their children, Jordan, 15, Eve, 13, Elijah, five, and three-year-old John Abraham are not spoiled by the trappings of fame.
Ali said: "We have taken them to the townships in South Africa. And although they have much more than Bono and I did growing up -- Bono's dad was in the postal service, my mum and dad had an electrical business -- we don't spoil them.
"We also have two dogs and a rock band so we have plenty to look after."
She says her and Bono have always taken world problems to heart.
"Even at school, Bono and I would talk about what was wrong with the world," she said.
Meanwhile, Bono and Van Morrison are among the stars who will appear on a new album from blues legend BB King later this year.
King, who turns 80 in September, teamed up with U2 for When Loves Comes to Town in 1988.