Mariah Carey is America’s least subtle national treasure. Her most recent record was called Me. I Am Mariah… The Elusive Chanteuse, her baby twins entered the world to the sound of applause from a live recording of “Fantasy,” and, just the other day, she was spotted wearing fishnets and stilettos on a stairclimber. It should come as no surprise that Mariah’s new song, “I Don’t,” is an explicit (though never foul-mouthed) response to her sudden split from her billionaire fiancé, James Packer.