50 years after its release, Don McLean shares the secrets behind his iconic song 'American Pie', one of the great musical touchstones of the 20th century.50 years after its release, Don McLean shares the secrets behind his iconic song 'American Pie', one of the great musical touchstones of the 20th century.50 years after its release, Don McLean shares the secrets behind his iconic song 'American Pie', one of the great musical touchstones of the 20th century.