See Sylvester Stallone at his most adorable (yes, adorable!) as he talks to David Letterman about the Rocky musical. From poking fun at himself ("Das Musical? I thought I spelled it that way.") to talking up star Andy Karl. ("We scoured the world! He has to fight and be in amazing shape.") Watch to see the Hollywood heavy-hitter cheer on the Broadway show and offer up some amusing anecdotes about …
SOURCE: Broadway.com at 12:23PM on March 13, 2014