Marilyn Horne is a renowned mezzo-soprano singer who has been performing for over six decades. She is best known for her roles in operas by Rossini, Handel, and Mozart. She has won numerous awards, including the National Medal of Arts, and has been inducted into the American Classical Music Hall of Fame. Her last name, Horne, is a five-letter word that can be found in the crossword solution for the term 'mezzo-soprano Marilyn'.