Elvis Presley, That’s All Right (1954)
The King of Rock’n’Roll recorded That’s All Right when they took a rest from recording day. He just started jamming Arthur Crudup’s “That’s All Right, Mama.” Sam Phillips was involved in listening. He pressed record and placed “Kentucky’s Blue Moon” on the B-side. The rest, as they claim, are past. Many people believe it’s the first real rock ‘n’ roll album. Are you in mint condition? If that’s the case, you will receive around $4,000.

Elvis Presley, That’s All Right (1954)
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