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 lazily walked through her dance moves with little enthusiasm. It appeared she had forgotten the entire art of lip-synching; and, perhaps most unforgivable given her once taut frame, she looked embarrassingly out of shape.

Even the celebrity-studded audience seemed bewildered. 50 Cent looked at Spears with a confused expression; Diddy, her new best friend, was expressionless.

Some comeback.

The VMAs was hoping to reinvent itself on Sunday. After suffering poor reviews and a decline in ratings over the last few years, MTV moved the show to Las Vegas' Palms Casino, shortened the show from three hours to two, and changed the show's setup to focus more on performances than awards.