text:  That song Elvis Presley recorded was called That's Alright, and as legend has it, Elvis did not realize he had a hit in his hands. As the story goes, a teenage Elvis had a rough day in the studio. He and his bandmates Scotty Moore and Bill Black were about to pack up and go to bed. Until Elvis began singing an old blues song. Here's how guitarist Scotty Moore told it to NPR in 2004.