It is possible Kelly Clarkson's lengthiest performance of the year will be the one she gave for Yahoo Music in mid-June. By the time it was taped, she had fired her manager, canceled her tour and started her public feud with her label's management - but her third album, "My December," had not been released. On that night, she was in good spirits, answered fans' questions and played a fair amount of the material from "My December." In that intimate setting, Clarkson exhibited a winning persona and delivered her music with a hearty enthusiaism.