U2 - BONO CANNOT UNDERSTAND HIS WIFE

U2 frontman BONO may have known his wife ALI HEWSON since his schooldays, but the rocker still does not understand her.

The pair met when they were at school together in Dublin 30 years ago, and were friends before they started dating.

But he says, "There's still a lot I don't know about her. She's a mystery to me. Sometimes I feel like I'm not good enough for her."