Johnny Cash

Cash's late-career comeback reached another peak on July 24, 2003.

On July 20, 1968, Cash hit No. 1 on the country charts with a live version of "Folsom Prison Blues."

It's the former home of Johnny Cash's parents.

His version sounded very different from Rogers' hit.

There can only be four. No more, no less.

On July 7, 1956, Cash made his debut on the Grand Ole Opry -- and met his future wife, June Carter.

He died just nine weeks later.

Country music would sound way different, if it existed at all, without the original Carter Family trio.

Happy Fourth of July, y'all!

Listen to the music on these albums any way you can.