Johnny Cash and June Carter

"They set the stage for what it is to be a couple in the spotlight because they had such an amazing relationship."

George Jones and Tammy Wynette

"Legendary."

Waylon Jennings and Jessi Colter

"They're the coolest of them all."

Rodney Crowell and Rosanne Cash

"Oh, gosh. They're like renegades that were a couple."

Tim McGraw and Faith Hill

"Hot." (Then she giggled.)

Garth Brooks and Trisha Yearwood

"I think they're very real and very down to earth. I don't know them, but they seem that way."