It's been several months since Britney's infamous VMA performance that I was hoping would be her comeback performance. We all know how that went down... but here's a intriguing video from youtube that shows her VMA perfomance side by side with a rehearsal video using a stand in. Now I'm still a Britney fan (although I use the term "fan" loosely nowadays), but it seems that perhaps a little bit more practice than partying would have done the girl good!