Usher pulled out all the stops for his Apple Music halftime show, where he was joined by Alicia Keys, H.E.R., Lil Jon, Ludacris and will.i.am Ingrid Vasquez is a Digital News Writer at PEOPLE. She ...

Taking things to a whole new level, the eight-time Grammy winner even performed while on roller skates. Usher Recalls the Sweet Moment He Told His Sons 'It's Okay to Cry' — and How It Inspired ...