This may be regarded as a low value comment so I apologize in advance.

While reviewing the story ( and listening to the song ) my first thought was of Krusty from the Simpsons and how little he cared about the stuff he records on dolls bearing his likeness. In an odd way, it sounds exactly what happened here.

'This is how pros do it' - prolly Krusty

edit: I know that the actual rapper may actually go legally after the company using his song.