CELINE DION doesn´t have time for that. I pretty much doubt it. She doesn´t stop either touring around the world or show after show in Vegas. Plus she is recording two new albums for these November, one for the French audience and finally a new English one

MARIAH CAREY I doubt it too. She is busy with teh album and other things. If she didn´t take X factor when they begged her she won´t do this. And her husband already said that AI would have to pay way too much to get Mariah if they were paying JLo 15 or 20 million. I think it´s impossible

I don´t care about the rest. Although Aretha would be truly a surprise, she is a true great and she is shady as hell. And who said she is not famous enough? haha