Question: When was the singer of "Funny Face" born? 

full_context: Document 1: Mr. Wonderful (1955 song): "Mr. Wonderful" is a popular song, written in 1955 written by Jerry Bock, George David Weiss, and Larry Holofcener, as the title song of a Broadway musical starring Sammy Davis Jr.
Document 2: Funny Face (1927 song): "Funny Face" is a 1927 song composed by George Gershwin, with lyrics by Ira Gershwin.
Document 3: Ginger Rogers: Ginger Rogers (born Virginia Katherine McMath; July 16, 1911 – April 25, 1995) was an American actress, dancer, and singer, widely known for performing in films and RKO's musical films, partnered with Fred Astaire. She appeared on stage, as well as on radio and television, throughout much of the 20th century.
Document 4: Nice Work If You Can Get It (musical): Nice Work If You Can Get It is a musical featuring songs by George and Ira Gershwin, with a book written by Joe DiPietro, and based on material by Guy Bolton and P. G. Wodehouse. "Nice Work" premiered on Broadway in April 2012.
Document 5: George Gershwin: George Jacob Gershwin ( ; September 26, 1898 July 11, 1937) was an American composer and pianist. Gershwin's compositions spanned both popular and classical genres, and his most popular melodies are widely known. Among his best-known works are the orchestral compositions "Rhapsody in Blue" (1924) and "An American in Paris" (1928) as well as the opera "Porgy and Bess" (1935).
Document 6: Cyd Charisse: Cyd Charisse (born Tula Ellice Finklea; March 8, 1922 – June 17, 2008) was an American dancer and actress.
Document 7: Gershwin (disambiguation): George Gershwin (1898–1937), American composer, author of famous works such as "Rhapsody in Blue" and "An American in Paris"
Document 8: Vera-Ellen: Vera-Ellen (born Vera-Ellen Westmeier Rohe; February 16, 1921 – August 30, 1981) was an American dancer and actress, principally
Document 9: Adele Astaire: Adele, Lady Charles Cavendish (born Adele Marie Austerlitz; September 10, 1896 – January 25, 1981) was an American dancer, stage actress and singer. She was Fred Astaire's elder sister, and his partner in a 27-year career in vaudeville and theater, beginning when he was five and she was eight.
Document 10: Funny Face: Funny Face is a 1957 American musical romantic comedy film directed by Stanley Donen and written by Leonard Gershe, containing assorted songs by George and Ira Gershwin. Although having the same title as the 1927 Broadway musical "Funny Face" by the Gershwin brothers, and featuring the same male star (Fred Astaire), the plot is totally different and only four of the songs from the stage musical are included. Alongside Astaire, the film stars Audrey Hepburn and Kay Thompson.
Document 11: Judy Garland: Judy Garland (born Frances Ethel Gumm; June 10, 1922 – June 22, 1969) was an American singer, actress, and vaudevillian. She was renowned for her contralto vocals and attained international stardom that continued throughout a career spanning more than 40 years as an actress in musical and dramatic roles, as a recording artist, and on concert stages.
Document 12: Audrey Hepburn: Audrey Hepburn ( ; born Audrey Kathleen Ruston; May 4, 1929January 20, 1993) was a British actress, model, dancer and humanitarian. Recognized as a film and fashion icon, Hepburn was active during Hollywood's Golden Age. She was ranked by the American Film Institute as the third-greatest female screen legend in Golden Age Hollywood and was inducted into the International Best Dressed List Hall of Fame.
Document 13: Fred Astaire: Fred Astaire (born Frederick Austerlitz; May 10, 1899 – June 22, 1987) was an American dancer, singer, actor, choreographer and television presenter.
Document 14: 'S Wonderful: "' S Wonderful" is a popular song composed by George Gershwin, with lyrics written by Ira Gershwin. It was introduced in the Broadway musical "Funny Face" (1927) by Adele Astaire and Allen Kearns.
Document 15: Allen Kearns: Allen Kearns (14 August 1894 – 20 April 1956) was a Canadian-born singer and actor. He was born in Brockville, Ontario, Canada and died in Albany, New York. He played the romantic lead role in several Broadway musicals and is especially remembered for introducing two hit songs by George and Ira Gershwin: "'S Wonderful" (from "Funny Face", 1927) and "Embraceable You" (from "Girl Crazy", 1930).
ground_truth: September 10, 1896