John Denver was one of the highest-selling and most popular singers during the 1970s. He was known for folk, pop and country music. Some of his greatest songs are Take Me Home Country Roads, Leaving on a Jet Plane, Rocky Mountain High, Sunshine on My Shoulders and Annie's Song. He died when a plane he was piloting crashed in California.
Johnny Cash, the American singer, songwriter and actor, was known for sorrow, moral suffering and redemption themes in his music. His genre was country, rock and roll, blues, folk and gospel sounds and he is one of the best-selling artists of all time. Cash had issues with drinking and drug abuse. Later he was diagnosed with a neurodegenerative disease.
12 Rick Danko
Canadian singer and The Band member Rick Danko initially performed as a rhythm guitarist and bassist for The Hawks. Part of The Rock and Roll Hall of Fame, Danko struggled with drug addiction and was once even arrested in Japan for smuggling drugs. He died in his sleep after a performance.