Jimmy Fallon, The Roots and Carly Rae Jepsen - "Call Me Maybe"

One month on and I still haven't got sick of this. Jepsen's original track is already a worldwide number one mega-hit, a disco-influenced pop earworm which I don't really like that much, yet find myself humming anyway. But this version from Late Night With Jimmy Fallon is just perfect. I've watched this over a dozen times, and aside from its cuteness, it's interesting as a study in musical arrangement. But mostly it's funny for the little details; Black Thought (tambourine) trying not to lose his shit, Frank Knuckles (bongos) and his little head movements, and Questlove playing the guiro with an afro pick.