Last night LeBron had a free throw contest with David Letterman when he appeard on his Late Show. Apparently Letterman questioned LeBron about whether or not adding Shaquille O' Neal "completes the puzzle" for the Cavs to win a championship. LeBron responded by joking that Shaq is big enough to be a couple pieces to the puzzle. LeBron did Letterman (again) to promote his documentary More Than a Game which I already told you about, as well as his Shooting Stars memoir. David Letterman knows.. LeBron James is underrated