Loretta Lynn

On Nov. 20, 1972, Lynn released her single "Rated 'X'."

From historic Entertainer of the Year wins to surprising onstage antics, this photo gallery looks back at 10 of the CMA Awards' biggest moments.

It "definitely caught me off guard," she admits.

Remember these?

Is your favorite on our list?

On Aug. 18, 1973, Twitty and Lynn landed at No. 1 on the Billboard country chart with "Louisiana Woman, Mississippi Man."

The Hollywood Walk of Fame features everyone from actors to radio personalities, and there are plenty of Nashville names enshrined there.

Let these words sink into your soul.

It's a piece of country music history.

It was the beginning of an iconic career.

"I'm not happy at all."

Country music has long lent itself to harmonizing and verse-swapping duos.