All the fans that followed Elvis and Priscilla's love story may already know why this day in history remains significant in the couple's lives.

On this day, October 9, 1973, they finalized their divorce and co-parented until August 16, 1977, when Elvis died at the age of 42.

Priscilla, also known as Beaulieus, met Elvis in 1959 when she was 14. The two met in Germany when Elvis was serving in the army abroad. The American singer and actor was instantly attracted to Priscilla. The two spent years trying to win the reluctant blessings of their parents despite their 10-year age gap. Elvis and Priscilla finally wedded on May 1, 1967, in Las Vegas. However, just 6 years later, Elvis and Priscilla Presley divorced.

The divorce was not unexpected. Rather, the two had a trial separation during Priscilla's seventh month of pregnancy. They separated for a short period before getting back together upon their daughter Lisa Marie's birth. Their marriage remained in trouble, with Priscilla accusing Elvis of not wanting to make love to her.

Elvis and Priscilla's marriage is one of the celebrity unions filled with discord and infidelity. Elvis had an affair with other women while married to Priscilla. Throughout the marriage, Priscilla also had affairs with her karate instructor and dance studio's owner. This tempestuous period inspired the King of Rock N' Roll to release an emotional song, "Separate Ways." A single Elvis was released in 1972 to detail the divorce's effects on their young daughter. The B-side of "Separate Ways" is another emotional hit: "Always on My Mind."