Future Mariah-Janet Duet?

There are reports (h/t novaslim) that Mariah Carey is interested in working with Janet Jackson. Jermaine Dupri, the main producer of the Grammy-winning and best-selling The Emancipation of Mimi is also Janet Jackson's boyfriend/husband/boo and claims that he has been thinking about this for a while.

"The hardest part is figuring out a song that fits both of them, because you have two different styles of artists, and the thing when you're dealing with divas is you don't want to overshadow either one, so if you were to do a song for them, it would have to work where both of them would feel they were on the same pedestal, or else someone's gonna have a problem."

How about the fact that one of them has a five octave range and the other has a one octave range? (Or that one of them is a naturally gifted dancer and the other is ...not.) [/snark]