In the midst of a recent Cher concert at a packed arena in Washington, D.C., massive TV screens flashed a clip of the star declaring that if she wanted to take a certain pair of body parts from her chest and implant them in her back it would be nobody's business but her own. Cher's anatomy, of course, sports no such anomalies. Quite the contrary: The star on stage that night had everything in the right place. If anything, she resembled one of those cookie-cutter female characters in a contemporary Disney animation. Slap a red wig and fish tail on...