What sells shoes? Great design? Awesome performance? Celebrity endorsement? All factor in, but all culminate best with awesome advertising. As great of a pitchman as Michael Jordan was, it was Mars Blackmon that did most of the talking in the early days. With Mars turning 25 today we break down the Air Jordans he backed and the great commercials that went along with them. Which campaign is your favorite? Vote in the poll to tell us.