Memphis, Tennessee. The early 1950s. The Mississippi rolls by, and there's a train in the night. Down on Beale Street there's hard-edged blues, on the outskirts of town they're pickin' hillbilly boogie. At Sam Phillips' Sun Records studio on Union Avenue, there's something different going on. "Shake it, baby, shake it!" "Go, cat, go!" "We're gonna rock..." This is where rock 'n' roll was born-the record company that launched Elvis Presley, Jerry...