There's some thought Run The Jewels may have the album of the year in their sophomore effort, Run The Jewels 2. The duo, Killer Mike and El-P, got some pretty nice national exposure on Friday, performing their track 'Early' on Late Night With David Letterman.

If you wondering who that Dave Matthews looking guy singing the hooks is, his names is BOOTS, and he crashed the music scene last year by producing Beyonce's self-titled fifth studio album last year.

If you liked that, or if you are just curious about where all the buzz is coming from, you can stream all of Run The Jewels 2 for free.