THE 317: Madonna Putting In OT

A source tells Perez Hilton, “Madonna has been brutal in rehearsals. Although they’ve been having a laugh, they’ve been doing up to 12 hours in a New York studio. She’s saying they can sleep after the Big Game. She’s involved in every aspect of the show, including Nicki and M.I.A’s outfits. Nicki has been telling pals it’s the most grueling thing she has ever done and wouldn’t expect anything else, calling it an ‘epic learning experience’.”