“Dance seems to be coming out of the shadows. The top-rated, top-viewed video on YouTube is The Evolution of Dance, a breezy potted history of popular dance styles – which is also, incidentally, a breezy potted history of popular music, except with dance on top, the way I like it. Elsewhere, kids all over YouTube are showing off their dance moves in a kind of physical karaoke, sometimes on the street, often in their rooms.”