Kelly Clarkson

More than any other American Idol winner, Kelly Clarkson has distanced herself from the show that launched her career — and created a credible artistic identity. Her daring evolution began with 2004's rock-oriented Breakaway, on which Clarkson belted songs such as "Since U Been Gone" and emerged as pop music's most dynamic performer. This year's All I Ever Wanted finds the native Texan rocking out like never before. The worldwide hit "My Life Would Suck Without You" and the almost unbearably infectious "I Do Not Hook Up" highlight her powerhouse pipes — and retain her irresistible dichotomy of giddy, anthemic celebration and mature personal empowerment.