Kelly Clarkson, the toothsome winner of Fox TV’s first American Idol competition shows that her prime-time win was no fluke. She blithely skips through octaves and genres like a seasoned pro, belting out power ballads like hooky “Low” and the Diane Warren-penned “Some Kind of Miracle,” with the aplomb of Pat Benatar in her prime. Clarkson tackles the neo-gospel “Anytime” without flinching, then shows some dirty street cred as she growls through “Miss Independent,” a song she penned with Christina Aguilera.