Marian Anderson (1897 – 1993) was an American contralto and one of the most celebrated singers of the twentieth century. Anderson became an important figure in the struggle for black artists to overcome racial prejudice in the United States during the mid-twentieth century. In 1939, the Daughters of the American Revolution (DAR) refused permission for Anderson to sing to an integrated audience in Constitution Hall. With the aid of Eleanor and Franklin D. Roosevelt, Anderson performed a critically acclaimed open-air concert on Easter Sunday, April 9, 1939, on the steps of the Lincoln Memorial in Washington, D.C. She sang before a crowd of more than 75,000 people and a radio audience in the millions. Anderson continued to break barriers for black artists in the United States, becoming the first black person to perform at the Metropolitan Opera in New York City on January 7, 1955. The recipient of numerous awards and honors, Anderson was awarded the Presidential Medal of Freedom in 1963, the Kennedy Center Honors in 1978, the National Medal of Arts in 1986, and a Grammy Lifetime Achievement Award in 1991.
Here is a video of her historic performance at the Lincoln Memorial in 1939.