JoJo burst into the pop world as a young teenager, although the emotional performances she gave of her longing yet upbeat tracks hinted at a maturity beyond her age. In the years since, she's further asserted herself as a shrewd interpreter of soul-tinged pop, bringing her skills to R&B classics, commanding big-beat dance tracks and holding her own against A-list MCs. This playlist tracks her evolution from teen idol to grown-and-sexy pop heroine.