Ottis Dewey Whitman , Jr. ( January 20 , 1923 -- June 19 , 2013 ) , known professionally as Slim Whitman , was an American country music and western music singer , songwriter and instrumentalist known for his yodeling abilities and his smooth high three octave range falsetto .
Ottis Dewey Whitman , Jr. ( January 20 , 1923 -- June 19 , 2013 ) , known professionally as Slim Whitman , was an American country music and western music singer/songwriter and instrumentalist known for his yodeling abilities and his smooth high octave falsetto .