"Singing Hills" is a song written by Mack David, Dick Sanford, and Sammy Mysels. As "The Singing Hills" it was very popular in 1940 with both Bing Crosby (No 3 in the charts) and Dick Todd (No.16) having hits with it.
Slim Whitman released it as a single (Imperial 8267, with "I Hate to See You Cry" on the flip side) in 1954.