After signing a major recording contract at age 12, Joanna "JoJo" Levesque shot to the top of the pop charts with hits like “Leave (Get Out)” and “Too Little, Too Late.” She was on track to become one of the biggest pop singers of the 2000s — and then she seemingly disappeared overnight. In this interview with Tom Power, JoJo opens up about the betrayals she endured as a child star, the label issues that derailed her promising career, and why she’s telling her story now in a new memoir called “Over the Influence.”