The 2007 MTV Video Music Awards were supposed to be Britney Spears' big comeback after taking a hiatus to have kids and marry (and divorce) Kevin Federline. Instead, Brit's listless performance of "Gimme More," with the singer unable to both dance and lip-sync along with her new single, was universally panned and perhaps triggered a series of events that led to Spears' mental breakdown early the next year. "She was extremely nervous. It's been awhile since she's done this, and she was performing in front of all her peers, on live TV," a source close to Britney said after the disastrous performance. "She just got out there and froze."