Rev Run (aka Joey Simmons and DJ Run), one third of Run D.M.C. (more like half of Run D.M.C. if you go by weight), has been bald for years. How many years? I just don't know. In every single old picture of Rev Run that I could find, he is wearing a hat. And now to cover his tracks, he shaves his head. So in lieu of pictures of his fading hair line, I simply picked the most flattering picture I could find of him.
Here's Rev Run back in the day:
Rev Run is on the left in the picture above.