Patsy Cline was one of the most influential vocalists of the 20th century and a pioneer for women in country music. She was the first female country singer to successfully cross over into the pop charts and become a headline performer. Her rich, emotionally resonant contralto voice was perfectly suited for the 'Nashville Sound,' which used lush strings and background vocals to create a sophisticated style. Her 1961 hit 'Crazy,' written by a young Willie Nelson, became her signature song and remains the most-played song on jukeboxes in history. Cline was known for her tough, independent spirit in the male-dominated music industry. Tragically, she died at the height of her fame in a plane crash in 1963 at age 30. She was the first woman ever inducted into the Country Music Hall of Fame, and her influence can still be heard in countless singers today.