"You mean sincerity won?" asks Jewel with astonishment regarding her recent triumph at the American Music Awards. "It's amazing, isn't it?" Not yet seeming even slightly jaded by the success that has come her way, she's as surprised as anyone that her debut asbum, Pieces of You (Atlantic), which was recorded in intimate acoustic glory at the Innerchange Coffeehouse in San Diego, could be the colossal mainstream hit it has become.