Com and Kanye drop verses on the original, and John Legend sings... right?

So maybe It'll be the same structure on the remix... as in the producer will rap on the track, and a singer will do the hook

So poet= Com, Return= d'Angelo... but what producer? lets count the producers that rap and would fit on a track by Common too... Kanye, Hi Tek (Blast), ?uest (You ain't fly), RZA (?), Pharrell. I don't know anymore that would fit on a They SAy Remix... add on