"That's All Right" is a song written and originally performed by the American #blues singer #ArthurCrudup, and recorded in 1946. It was rereleased in early March 1949 by #RCAVictor under the title "That's All Right, Mama", which was issued as RCA's first rhythm and blues record on its new #45RpmSingle format. "That's All Right" is best known as the debut single recorded and released by #ElvisPresley. Presley's version was recorded on July 5, 1954.
https://www.youtube.com/watch?v=YZe_8u-rGWE