Sun Records owner Sam Phillips and Elvis Presley both fingering a chord on the same guitar, United States, 1956. (Photo by Mark and Colleen Hayward/Getty Images)
MEMPHIS, TN – DECEMBER 04: Rock and roll musicians Jerry Lee Lewis, Carl Perkins, Elvis Presley and Johnny Cash as "The Million Dollar Quartet" December 4, 1956 in Memphis, Tennessee. This was a one night jam session at Sun Studios. (Photo by Michael Ochs Archives/Getty Images)
LOS ANGELES – MARCH 26: Crooner Frank Sinatra welcomes back Rock and Roll star Elvis Presley after his stint in the US army on his self titled TV variety show on March 26, 1960 (the show aired May 12, 1960) in Los Angeles, California. (Photo by Michael Ochs Archive/Getty Images)
