WHOA!!! Mos Def challenges Jay Z to a battle..(Wants him to prove he is best rapper alive)

I actually am supporting Mos Def with this challenge to to Jay Z, he laid out a viable plan that would be great for Hip Hop and the money would go to charity.

After proclaiming the death of the must used autotune how can the so-called greatest rapper alive ignore such a challenge? Are you listening Jay Z?