This comp is a natural, as Tony's career is a master class on singing pop standards. Here are 20 of his best-loved solo and duet performances of iconic compositions; deluxe edition adds 10 more. Both... more

"Duets" (2006) won a Grammy and became Tony's best-selling album. Round two is another amazingly eclectic affair; along with the late Amy Winehouse ("Body and Soul"), he joins k.d. lang ("Blue... more