Katharine Faulkner "Kay" Swift (April 19, 1897 – January 28, 1993) was an American composer of popular and classical music, the first woman to score a hit musical completely. Written in 1930, Fine and Dandy includes some of her best known songs; the title song has become a jazz standard. "Can't We Be Friends?" (1929) was her biggest hit song. Swift also arranged some of the music of George Gershwin posthumously, such as the prelude "Sleepless Night" (1946).