Which song is traditionally sung during the seventh-inning stretch?

Which pitcher won four consecutive Cy Young Awards from 1999 to 2002? Which player won a record seven MVP awards? Which Angels outfielder won three AL MVP awards (2014, 2016, 2019)? Which player won unanimous MVP awards in 2021 and 2023 with the Angels? At which ballpark do fans sing "Sweet Caroline" in the eighth inning? Which Cubs broadcaster was famous for leading the crowd in "Take Me Out to the Ball Game"? Which broadcaster called Dodgers games for 67 seasons? Which comedy duo performed the famous baseball routine "Who's on First?"