 "My Fair Lady" star Rex Harrison portrays a visiting Englishman who takes a dim view of American culture. To overcome his skepticism, he is introduced to a wide variety of American musical styles. Highlights: Play it cool--dancers; The Mary had a little lamb cha-cha-cha--Channing; Go west, young man--Arnold, singers, dancers; Shine on, harvest moon, Baby bumblebee, Silvery moon--singers, dancers; Streets of Laredo--singers, dancers; Basin Street blues, Trouble I ve seen--Armstrong; Blues in the night--Lee; Sit down, you re rockin  the boat--Kaye; Didn t it rain--Jackson; Bill Bailey--Miles, Murphy; The birth of the blues--Washington; blues sequence--Goodman, Carroll; jazz sequence--Goodmann, Armstrong.