A few weeks ago, British folk champions Ed Sheeran and Mike Rosenberg a.k.a. Passenger let their fans in on quite a treat. While performing an acoustic set for Australian radio show Fifi & Jules, they let loose a beast of an acoustic cover-mashup. With their rustic voices intertwining, they killed with a glorious rendition of Blackstreet's "No Diggity," squeezing in a little "Thrift Shop" while they were at it. They take a classic song, and really run with it. Beautiful stuff.