Details of the mysterious video Britney Spears is starring in for Madonna's upcoming Sticky and Sweet tour have emerged. While the previous Brit/Madge collaboration "Me Against the Music" was the obvious guess, Spears will instead appear on the big screen while Madonna performs her Bedtime Stories hit "Human Nature." Much like Madonna in the original video for that song, Britney will dance and contort herself within a small, confined space — except this time around, it's an elevator. Seven cameras will reportedly capture Spears in the lift "pacing back and forth. Then she progresses to kicking and smacking the walls, all frantic-like. She screams into one of the cameras. Then she starts climbing the wall." Brit's freak-out concludes with her staring into one of the cameras and saying the trademark "It's Britney, bitch." The Sticky and Sweet tour kicks off its U.S. jaunt October 4th in East Rutherford, New Jersey.