50 Cent has spent years as a common thorn in the side of both Rick Ross and T.I., and now Hip-Hop heads are reading between the bars. The Southern rap heavyweights connect on “Mahogany Caskets,” a Ron “Neff-U” Feemster-produced heater that’s already got fans convinced the two are sending a few subliminal shots Fif’s way. Whether it’s strategy, smoke, or just rap paranoia, the track has listeners reviving that old saying: the enemy of my enemy is my friend.