CMT’s new series about legendary producer Sam Phillips, Sun Records, chronicles the birth of rock & roll by spotlighting the early careers of Johnny Cash, Carl Perkins, Jerry Lee Lewis and Elvis Presley.

Ahead of Sun Records’ February 23rd premiere, are five things you didn’t know about its most famous artist.

Cash cribbed from Gordon Jenkins’ “Crescent City Blues,” which includes the opening line “I hear the train a’comin’; it’s rollin’ ’round the bend.” Cash forked over a reported $100,000 after Jenkins sued him for copyright infringement.

Cash scored a major hit with “Folsom Prison Blues” – twice!A Top Five single in 1956, “Folsom Prison Blues” returned to the country charts a dozen years later, this time as the lead track from At Folsom Prison.

The cheers heard during the live version of “Folsom Prison Blues” were secretly spliced into the recording.

Cash began performing “Folsom Prison Blues” for inmates in the late Fifties, more than a decade before At Folsom Prison’s release.

The occupants of a prison in Huntsville, Texas, gave Cash his first incarnated audience back in 1957.

A country classic since the 1950s, “Folsom Prison Blues” has made its way into countless genres.

Dozens of artists, from Buckcherry to Everlast, have put their own stamp on the song, updating Cash’s twang with everything from psychobilly percussion to hard rock riffs.

Johnny Cash