Have you hear Britney's new song "Why Should I Be Sad"? Produced by Pharrell, the track's lyrics are clearly about KFed: "They couldn't believe I did it/ But I was so committed... Thought I'd be plenty for you." Plus revelations like: "My friends said you would play me" and "I sent you to Vegas with a pocket full of paper... I thought 'what could separate us?'/ But it just seemed that Vegas/ Only brought the pimp out of you." Um, yeah. [HypeMachine, Mixtape Maestro]