It's Tech N9ne.
Was listening to So Lonely and remembered how Eminem was supposed to be on this record and the thought just hit me about what Tech could do for Em.
Now before you start your "Em's too old" or "Shady was on Cold Wind Blows" blah blah blah crap, hear me out. Imagine Tech and Em were in the studio together, thinking of concepts, the outcome would be amazing. Tech has sick flow, sick lyrics and is very good at making you take his lyrics and put them into your imagination.The same thing Em is great at. I think if they got together and just spit its going to be something to remember. And Em is always saying about how when he's with Slaughterhouse he has to go back and write something else. I think it would be the same if he got with Tech. Em would really bring his A-game. And if Tech took a song to Em and he heard Tech spit, I think Em would unleash The Real Slim Shady once again.