Remember that time when The Muppets rapped to Beastie Boys [1]? Well, the furry creatures are at it again. Actually, mashup artist Mylo the Cat [2] is at it again, and this time, Rowlf is at the piano singing Biz Markie's 1989 hit, "Just a Friend." It's vintage footage paired with a vintage song, but it feels so very fresh and fantastic. Take a look below!