Margaretha "Greta" Keller (8 February 1903 – 11 November 1977) was an Austrian and American cabaret singer and actress, who worked in some Hollywood movies and television dramas. == Early life == Born Margaretha Keller in Vienna, Austria, she studied dance from the age of 8, followed by acting. Her début was in Pavillon in Vienna. She also appeared on stage with Marlene Dietrich in Broadway, in which she sang and danced. A recording contract with Ultraphon in 1929 took... [more on Wikipedia]