The spin is the band Atomic Tom had their instruments stolen.
They were riding the New York subway, happened to have a speaker set up with 4 inputs from iPhones (and a hardly impromptu two camera shoot).
All four members play their iPhones and put on quite the show for their fellow riders. The result is fairly amazing, leading TechCrunch to declare “If I were Apple, I would buy this video and put it on television. Like, tomorrow.”
Hat tip Upside Trader