TeamG having their knuckles Rapped

Following the disappointment of yesterday Dr.Dre-piped up with the usual rap. 
So to answer one of his fan club who said

"Dre, I so wanted to see a mock-up o Prof G in a biker jacket and tilted cap" Here you go

Peel away the face of Marlon and there you have it ProfG
Personally I don't get it:-)