ET's Kevin Frazier was front and cneter and in the middle of the fan-demonium on the red carpet at the MTV VMA'S .  Kevin interviews Christina Aguilera about performing for the first time since giving birth to her son Max, and the Jonas Brothers talk Britney Spears!

The pop trio tells Kevin they couldn't wait to meet Britney! "We're huge fans," Joe Jonas tells ET. "I mean, Britney was the first CD I ever bought."

Plus, Olympic icon Michael Phelps gives his take on the VMAs -- and young starlets Miley Cyrus, Ashley Tisdale, Lauren Conrad, and Audrina Patridge dish about the big night!

Click to watch these stars and more at the VMA red carpet!