It was unprofessional plain and simple.

And sorry but when you have a Jewish DJ who wants to be taken seriously talking shit about ANY black rapper then the game got switched somewhere.

Fuck Rosenberg. That dumbass needs to take 3 steps back because he's feeling himself too much.

In the end Nicki got her money, fans were pissed off, music wasn't performed and they looked stupid kissing her ass afterwards. If that's what he was hoping for when he talked shit then mission accomplished.