Christina Aguilera remembered all the lyrics during her performance at the Grammys on Sunday. Too bad she forgot how to walk. Yes, yes, yes, the 'Beautiful' belter sang wonderfully and seemed to redeem herself a week after fudging the national anthem at the Super Bowl. But all anyone is talking about the morning after is the stumble seen round the world.

"It's a trainwreck," one insider backstage tells me. "No one knows what's going on with her, but whatever it is, it isn't good."