A few years ago everyone was singing his songs. Now he’s unrecognizable.
For decades, David Letterman was the clean-shaven, wisecracking host who defined late-night television. But after he stepped away from The Late Show in 2015, Letterman started sporting a look no one saw coming: a thick, white beard that gave him a striking resemblance to Santa Claus. David Letterman always had a knack for leaving a lasting impression,…