Madonna's new single, Hung Up, was leaked early on Friday after complete versions of the song appeared online.

Lawyers acting on behalf of for Warner Music were quick to issue cease and desist letters to websites posting links to the track, the label gave the go ahead to radio to play the track, resulting in a slew of airplay over the weekend.

In the US, popular New York radio station KTU dedicated the weekend to the star, playing the track ...