Florence Foster Jenkins ( July 19 , 1868 - November 26 , 1944 ) was an American amateur operatic soprano who was known-and ridiculed-for her lack of rhythm , pitch , and tone ; her aberrant pronunciation ; and her generally poor singing ability .
Florence Foster Jenkins ( born Pennsylvania , U.S. , 19 July 1868 ; died 26 November , 1944 ) was an American soprano who became famous because she was such a bad singer .