Since I was not informed of this being Madonna Day (LOL) I am coming at ya late with a Madonna Track today.  This is the Mash-Up of Madonna vs. Cassius that inspired the version that will be performed on the Sticky and Sweet Tour.  Also below is Madonna rehearsing this song for her upcoming opening night of the Sticky and Sweet Tour.  That one is not the best quality but you can compare the two and hear the extreme likeness of the Mash-Up!  Enjoy