 I don't know if you know this gentleman. I really don't know what to say about him myself. Mull appeared in dozens of TV shows and movies over the years, but his first brush with showbiz was as a songwriter. He wrote a response to the song, A Boy Named Sue, called A Girl Named Johnny Cash. Who knew Martin Mull was 80? This is CBS News. Sponsored by Progressive Insurance. Looking for a career path with flexibility, great pay, and benefits? Go to progressive.com slash careers and apply online today.