Simon Cowell reveals a secret about Britney Spears that has never been discussed -- and, by the way, he's PISSED at Mark Burnett and "The Voice." And speaking of Simon, South Korean "Gangnam Style" singer Psy may be making Justin Bieber's manager, Scooter Braun, the new Cowell. Plus, Bill Clinton absolutely killed it last night at the DNC -- which may be a bad thing for President Barack Obama. We'll explain.