NBC / Weiss Eubanks / NBCUniversal via Getty Images

Dwayne Johnson and Kelly Clarkson performed a Loretta Lynn tribute.

Who knew Dwayne "The Rock" Johnson was such a talented singer?

Credit Amy Sussman / Getty Images

He got the chance to show off his vocal chops during an appearance on The Kelly Clarkson Show.

Credit Amy Sussman / Getty Images

Dwayne Johnson and Kelly Clarkson performed a Loretta Lynn tribute.

Erika Goldring / WireImage / Getty Images

The duo chose to honor the late Loretta Lynn by performing her song "Don't Come Home a Drinkin'

Erika Goldring / WireImage / Getty Images

Dwayne and Kelly sounded really good together:

NBC / Weiss Eubanks / NBCUniversal via Getty Images

It turns out that the duo's country collaboration took over a year to complete.

Credit Amy Sussman / Getty Images

"I grew up loving blues; hip-hop, of course; but then country Dwayne said

NBC / Weiss Eubanks / NBCUniversal via Getty Images

, but traditional — like, that 'three chords and the truth,' steel guitar kind of country," Dwayne said

NBC / Weiss Eubanks / NBCUniversal via Getty Images