I performed the selfsame scientific test myself, and I got all the people dancing like mad without their knowing it was Bowie. I did the same trick on them with Dead Man Walking, by the way, which only goes on to prove there is some sort of uneducated, prejudiced dislike for Bowie´s music among the general twenty-something public.
As for the dib at Madonna, I am persuaded by bfp´s argumentation. Here are some further details: in the TM song Pretty Thing he says "Tie you down, pretend you´re Madonna", which he wrote after one drink too many with Sean Penn by his own admission. Then there is an interview he gave around the time of the release of the Day In Day Out video, when he was complaining of the cuts suffered by it while Madonna got away scotfree with what he saw as a video based on a very peverse sexuality, La Isla Bonita (he mentioned specifically Madonna´s caressing her pubis mere seconds away after clutching a crucifix in prayer). And he seemed to hit the roof last June when it was rumoured that he might join Madonna onstage in her Roseland concert. It is a shame that he has turned against her, although I suppose there is so much aping- and- taking -the- credit- fo-r it a man can take.

We are all Greeks.
Shelley