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1956: Elvis Presley, Johnny Cash, Jerry Lee Lewis and Carl Perkins recorded some gospel standards together at Sun Records studios in Memphis, Tennessee in what became known as "The Million Dollar Quartet". What made the recordings so special is that they weren't planned. Perkins was in the studio to record new material, including a reworked version of "Matchbox". Sam Phillips, owner of Sun Records, had asked piano madman Jerry Lee Lewis to play the piano on the Perkins session to add some zest to the recording. Sometime that afternoon, Elvis, a former Sun artist who had switched to RCA, dropped by the studio. Presley was the hottest star in the business, having reached #1 five times in the last year. Presley and Phillips talked in the control room before Elvis went into the studio. Cash also dropped by, and soon, the jam session began. Phillips left the tapes running in order to "capture the moment". The session, however, would not be released for 25 years.