Three-time Academy Award co-winner for The King and I from 1956, South Pacific from 1958, and Porgy and Bess from 1959. His choral group, The Ken Darby Singers, provided the backup vocals for Bing Crosby's original 1942 White Christmas recording. He provided the vocals for the Mayor of Munchkinland in the classic The Wizard of Oz from 1939.