He’s a business mannnnn. This guy!! Marketing genius I tell ya. Even if you didn’t notice what Hov had under his seat at the Grammys last night, fans are going to bring it to your attention today. Yes, I know some of you will say who cares — but either way it’s a win for Jay Z — making you notice his brand. This is why he stays on top & athletes want to be on his roster! Check it out…