Well, just in case anyone doesn't know, nearly every year since 1987 Disney has run a commercial with a player saying the phrase after the Super Bowl, and it's become a catchphrase that people say whenever they win a big game - which the Boss undoubtedly did with his halftime set. Wikipedia has an exhaustive entry on the history and, er, legacy of the phrase, which former Disney honcho Michael Eisner credits his wife, Jane, with inventing.