Will there be a tribute concert at which this Madonna thing might happen?
The thing about having another celebrity in for your tribute is that I imagine you would want someone who is famous enough, to make you look like you are more famous than the star paying tribute, but not too famous, for fear of being overshadowed. And then, on top of that, you would want someone who could be competent, but who was also untalented enough that people remembered that they were YOUR songs, and that your talent was unquestionable, etc.
Basically what I'm saying is Kelly Rowland is going to be in high demand this year. Mariah already booked her for something, no?