Last night's show at Koko's is already one of the most legendary Madonna performances of all time. If you haven't already seen the show, go to AOL to check it out! Rehearsals for this epic performance took place at Duke's Island Studios. I wanted to share with you some pictures of the diva hard at work preparing, with her dancers & band. As you can see, a lot of preparation goes into an event like Koko's !-MADemoiselle (undercover)