The New York Daily News reports that Britney Spears’ lackadaisical performance of ‘Gimme More’ at the MTV Video Music Awards on Sunday was probably not a surprise based on the troubled pop tart’s behavior before the music network’s marquee event. “She showed up at rehearsal 3 1/2 hours late,” someone who was there tells Rush & Molloy. “And she walks in with a frozen margarita! It was so disrespectful. The network took a big gamble having her open the show.” Read more.