PEACE, LOVE AND UNDERSTANDING
Imagine the pressure to pick good make-out music when you're a rock legend wooing jazz's sultriest vocalist. Yes, it must be hard to be ELVIS COSTELLO, now squiring DIANA KRALL--to the Grammys, to Costello's Rock and Roll Hall of Fame induction, to a London fund raiser at which the pair performed a duet (Elton John's Sorry Seems to Be the Hardest Word). Costello, 47, and Krall, 38, met presenting an award at last year's Grammys. "It's a wonderful thing, and it's special to me. I'm really happy," Krall told the Canadian press of the relationship. And if...