Madonna posted a clip of her rehearsing Open Your Heart on her official Instagram account, many speculate as to what she is rehearsing for. 

However Madonna is due to make a ‘special apperance’ at the Leonardo Dicaprio Foundation Gala in St-Tropez on July 26. She has just begun following Leonardo Dicaprio on Instagram, so this might confirm her special appearance. Check out PageSix for more on the event.