Hamilton was known as the `` International Ambassador of Country Music '' His biggest hit , `` Abilene , '' hit No . 1 on the country charts in 1963 . He also had a # 2 pop and # 3 Hot 100 with his version of " I'm A Man Of Constant Sorrow'( which he wrote ).
Hamilton was known as the `` International Ambassador of Country Music '' His biggest hit , `` Abilene , '' hit No . 1 on the country charts in 1963 . He died at a Nashville hospital after a heart attack .