Johnny Cash shared the story of how he proposed to June Carter on stage.

Johnny Cash and June Carter Cash were one of country music's most legendary couples, and the Man in Black proposal to his future wife was straight out of a movie.

Cash surprised June Carter with an onstage proposal during a gig in London, Ontario, Canada on February 22, 1968.The moment was depicted as one of the pivotal scenes in the Oscar-winning Cash biopic I Walk the Line, which starred Joaquin Phoenix as Cash and Reese Witherspoon as Carter.

At a time when Carter was singing with Elvis, Cash and Carter met for the first time backstage at the Grand Ole Opry.Cash was married to his first wife at the time, but after 12 years and four daughters together, Liberto filed for divorce from Cash, citing his ongoing addictions and allegations of extramarital affairs.

In her memoir, I Walk the Line: My Life With Johnny, Liberto called the divorce a "degrading, horrible experience" and blamed June for the split.

Liberto wrote that he should have been relentless in saving the marriage.

Cash wed Carter on March 1, 1968, less than two weeks after his public proposal, after they finalized their divorce.John Carter Cash was born in 1970.Carryin' on With Johnny Cash and June Carter were two of the collaborative albums released by the couple.

In his book, Anchored in Love: An Intimate Portrait of June Carter Cash, the son revealed that all was not always rosy in his parents marriage.The couple remained a source of inspiration despite their ups and downs.