John Prine: The gifted singer-songwriter, best known for songs such as 'Angel from Montgomery', 'Sam Stone', 'Hello in There', died April 7 at the age of 73 from complications from the coronavirus. The Grammy-winning American singer, who had been 'The Mark Twain of American songwriting' by Rolling Stone magazine, had been hospitalised for coronavirus and was in "critical" condition in the days leading up to his death.