The Boot Staff

"Summertime, and the livin' is easy" -- so goes the old American standard.

The country music world has a lot of BFFs. No wonder the genre has so many great best friend songs.

There's no bigger moment in a person's life than the day they exchange vows, and country music is rich with love songs filled with pledges of undying love and devotion, perfect for couples on that most special of days.

Did you know all of this?

On April 15, 1989, Parton served as both the host and musical guest on 'Saturday Night Live'.

'Garth Brooks' debuted on April 12, 1989.

On March 14, 1970, Haggard scored his ninth No. 1 hit.

On March 3, 1963, Cline performed her final show in Kansas City, Kan.

On Feb. 24, 1969, the "Man in Black" recorded his 'At San Quentin' album.

On Feb. 22, 1968, Cash proposed to Carter while they were onstage together in London, Ontario, Canada.