It’s a popular topic on gossip and entertainment news sites: Which big star might be losing his or her hair and which celebrities may have received hair transplants? Web sites such as Buzzfeed post before and after photos of celebrities they’ve suspected of having transplant procedures. British tabloids publish stories about the latest star to have a transplant. We hear speculation that A-listers like Matthew McConaughey, John Travolta, and Kim Kardashian may have received hair transplants. News involving the rich and famous almost always build an audience, and paparazzi photos pick up every change in a celebrity’s appearance.