Vampire Weekend went into BBC Radio 1's Live Lounge and came out with a damn good cover of Robin Thicke's "Blurred Lines," complete with Ezra Koenig rapping with a funny ATL-meets-posh-Mid-Atlantic accent during T.I.'s verse. At various points, the guys forget the words and kind of do a mumble-chuckle, which only adds to its charm. The whole thing is embarrassing/awesome. Listen below.