Why do they keep casting rappers in dramatic roles? 50 Cent, TI, Common, RZA- all ruin every scene they’re in

There are some who are good actors, but on top of being atrocious the ones mentioned also stand out like a sore thumb for being sort of a caricature to begin with. 50 Cent, TI and Common are so recognizable as pop stars that seeing them in a dramatic role immediately takes me out of the scene.

Mark Wahlberg, Ludacris, 2Pac, Ice Cube/Ice T - these guys pulled off the transition but god those others suck.