Here it is; the video that Britney Spears recorded for Madonna's Sticky and Sweet tour. It features Britney Spears going batty in an elevator while Madonna performs her single "Human Nature" on stage.
Britney Spears is wearing dark black sunglasses and a black hoodie, and, at some points, you'd think it was actually Madonna. But then, Britney Spears sheds the glasses and hood and says the famous lyric, "It's Britney, bitch" and the crowd howls with delight.
And yes, the footage is grainy and sometimes deafening, but it gets the job done. Enjoy.