Question: Who is the original singer of you were always on my mind?
Disambiguated questions and answers: question: Who is the original singer of  always on my mind?
Who is the original singer of  you’re always on my mind?
Who is the original singer of  you were on my mind?
answer: B.J. Thomas
Sam Cooke
Sylvia Fricker
Natural Questions answer: Gwen McCrae (from the Wikipedia article "Always on My Mind")