Singer says he's not concerned about "the sophomore slump."
Jay Z, Justin Bieber, Beyoncé, Diddy and more surprise fans at week one.
Concertgoers injured at a stop on the Mrs. Carter World tour have pointed the finger at Beyoncé, and are suing her and Live Nation.
Plus, pics from Mack Wilds, Nicki Minaj and more.
Teen now faces a misdemeanor for breaking a phone in jail.
The hit-making Bay Area rapper delivers his major-label debut.