Sylt hermit Mark Medlock posts first photo in 20 months - fans don't recognize the DSDS winner. “Oh, no mustache! Please! Makes you totally totally old,” one user even says.

The photo received almost 3,000 likes in the first three days. Many are just happy to hear from him again: “The main thing is that you’re doing well. It’s nice to read something from you” or “A sign of life, how nice, hello,’ it says.