Question: A song who's demo was leaked on to the internet on December 17th, 2014, was part of an album that was released on March 6th, 2015 by what record company?
Sentence (from "Joan of Arc (Madonna song)"): "Joan of Arc" is the eighth track on "Rebel Heart" and has similarity to the demo version, but with a lift in its tempo during the chorus.
Relevant evidence: No