So it’s now been confirmed that Britney Spears will indeed perform at the 2008 MTV Video Music Awards. A video of Britney rehearsing her song “Underground” was found on MSN.

It was written by Lady Gaga and Spears herself. Produced by Darkchild, the song surfaced in a video from MSN.com of Britney Spears rehearsing dance moves to the track, rumored to be for the 2008 MTV Video Music Awards.

How do you think Britney will do? I think she is going to bring down the house!