Is he a man or is he a Muppet? I would have guessed a man, but then I listened to Brock Baker's amazing rendition of "Rainbow Connection" as Kermit, Fozzie, Miss Piggy, Beaker, and the rest of the Muppets, and now I'm no longer sure.
Admittedly, his Kermit is a little dodgy, which is unfortunate, but he nails the rest of them. Oh, and make sure to watch until the end of the video.
[Via Topless Robot]