If you aren't familiar with Run The Jewels, aka RTJ, its time you get familiar. The rap supergroup consists of rapper Killer Mike (who has been very outspoken in the political arena the past year) and rapper/producer El-P. The group headed over to NPR (National Public Radio) to put on a small concert. NPR Music has a series entitled "Tiny Desk Concert"; Run The Jewels take part in it and kills it of course. There's a few lyrical stumbles that occur, but the group does amazing. Behind a tiny desk with a DJ behind them they put on their own lit concert. Check it out below!