In the past few years, these rapper-producer combos have solidified themselves as all time great duos due to the high quality of work they have put out. Out of all these duos we have witnessed release music over the past few years, who is the very best? . . . . . . . . . . #nas #hitboy #thealchemist #freddiegibbs #madlib #tylerthecreator #denzelcurry #kennybeats #21savage #metroboomin #littlesimz #inflo #undergroundrap #hiphopclassic