Namath is known for boldly guaranteeing a Jets' victory over Don Shula's NFL Baltimore Colts in Super Bowl III (1969), then making good on his prediction with a 16-7 upset.Already a celebrity, he was now established not only as a sports icon but a pop culture icon.Joe Namath, like many aging celebrities, makes his living advertising products on TV. He advertises Medicare Coverage Helpline, a product for Medicare recipients.