jpg thumb ( 450x600 ) px right Crystal Gayle ) ) Crystal Gayle ( born Brenda Gail Webb , January 9 , 1951 in Paintsville , Kentucky ) is an American country singer . Crystal Gayle ( born Brenda Gail Webb ) ( b. January 9 , 1951 ) is an American country music singer best known for her 1977 country-pop hit , `` Do n't It Make My Brown Eyes Blue '' .