Daughter of former singer Diane McAfee and actor Brandon Maggart. Because her teachers perceived her to be antisocial, Fiona began psychotherapy at age 11. A year later she became the victim of sexual assault. She crafted a demo tape while in Los Angeles finishing High School. When she returned home to New York for Christmas one of the tapes found its way to a friend who supervised the care of a music industry executive's children. The executive played the demo's for producer, Andrew Salter who immediately requested a meeting with Fiona.