1970, at Madison Square Garden in New York City. Johnny Cash and June Carter perform during “The Johnny Cash Show” at Cummins Prison Farm in Arkansas on April 10, 1969. (L-R) Johnny Cash and ...

The country icon known as the “Man in Black” had stopped the show just as they finished performing a duet of their hit single “Jackson” and asked June to marry him.

Johnny Cash performs alongside Buffy St. Marie on “The Johnny Cash Show” on July 5, 1969. Country music singer Johnny Cash is shown holding his newborn son, John, circa 1970.