Explain simply why Gwen McCrae ( as `` You Were Always On My Mind '' ) and Brenda Lee is the correct answer to: Passage: "Always on My Mind" is an American country music song by Johnny Christopher, Mark James and Wayne Carson, recorded first by Gwen McCrae (as "You Were Always On My Mind") and Brenda Lee in 1972.

Question: Based on this passage, who sang the original always on my mind?. Explanation:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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The important part for answering this question is: "Always on My Mind" is an American country music song by Johnny Christopher, Mark James and Wayne Carson, recorded first by Gwen McCrae (as "You Were Always On My Mind") and Brenda Lee in 1972.