Take Me Out to the Ball Game
"Take Me Out to the Ball Game" is a 1908 waltz song by Jack Norworth and Albert Von Tilzer which has become the unofficial anthem of North American baseball, although neither of its authors had attended a game before writing the song. The song's chorus is traditionally sung as part of the seventh-inning stretch of a baseball game.
Source: Wikipedia — Take Me Out to the Ball Game (CC BY-SA 4.0)