Mr. Music is a 1950 film starring Bing Crosby and Nancy Olson, directed by Richard Haydn, and released by Paramount Pictures.
The current campus hero is handsome athlete Jefferson Blake, so Katherine Holbrook, class valedictorian and chairman of the welcoming committee for returning alumni, asks Paul to work in a phrase about Jeff in one of his songs.
Lawrence Welk's champagne lady, Norma Zimmer sings the obligato, while sitting next to Bing during the song.
Kate continually hounds him to work, but Paul snubs her efforts so that he can play golf and entertain Lorna Marvis, his girlfriend.
Some time later, Paul brings Alex to Lawford to let him in on the surprise: The college students, aided by name performers such as comedian Groucho Marx, Metropolitan Opera singer Dorothy Kirsten, dancers Marge, and Gower Champion, who portray themselves along with the singing group The Merry Macs, have put on Mr. Music for the benefit of several potential backers.
and featuring as themselves: Bosley Crowther of The New York Times in his review of December 21, 1950 wrote: "To brighten the Christmas season, our old friend, Bing Crosby, is in town in a role (and an entertainment) that fits him—and he it—like a glove.
"[2] Variety concluded: "Despite a contrived story, the ingredients are sufficiently well mixed to make Mr. Music a box office winner.