Give Us More, Please: Somewhere, Kevin Federline is laughing. An out-of-shape, out-of-touch Britney Spears delivered what was destined to be the most talked about performance of the MTV Video Music Awards but for all the wrong reasons. Kicking off the show Sunday night with her new single, "Gimme More," Spears looked bleary and unprepared, much like her recent tabloid exploits on the streets of Los Angeles. She walked through her dance moves with little enthusiasm. She appeared to have forgotten the art of lip-synching. And, perhaps most unforgivable given her once-taut frame, she looked embarrassingly out of shape