Bold move. Madonna’s been busy on Instagram promoting her upcoming 13th studio album Rebel Hearts by Photoshopping her cover art look onto famous heads like Marilyn Monroe and Homer Simpson. The iconic singer, however, upset fans when she took it a step further and began altering the famous faces of world leaders like civil rights activist Martin Luther King Jr. and former President of South Africa Nelson Mandela. “This #rebelheart had a dream!” the “Like a Virgin” songstress captioned a Photoshopped image of MLK Jr. on Friday, Jan. 2, replicating her album cover, which features her face tied with black...