The Super Bowl Halftime headliner opens up like never before about his ups and downs and happy life now in this week's PEOPLE ... R&B superstar Usher set out to prove he's an unstoppable force ...

They’re always watching.” What has worked best for him and Foster, with whom he shares sons Usher Raymond V, 15, and Naviyd Eli Raymond, 14, is trying to have understanding. “Her ...