Ethel Merman showed up in the audience and was invited on stage.
Judy Garland had almost performed her "Annie Oakley" role in the movie
Annie Get Your Gun (1950). Ethel, Judy and her guest star
Barbra Streisand (who was starring on Broadway in the musical "Funny Girl") together sang "There's No Business Like Show Business" from the
Irving Berlin "Annie Get Your Gun" score.