"YOU'LL NEVER KNOW (JUST HOW MUCH I LOVE YOU)" is a standard pop classic by Harry Warren and Mack Gordon which has its origin in the 1943 film, "Hello, Frisco, Hello", where it was sung by Alice Faye. It was also performed by Faye in the 1944 film Four  Jills in a Jeep. The song is often credited as Faye's signature song. However, Faye never made a  recording of the ballad and, in later years, frequent covers of the song  diminished her association with it. The song won the 1943 Academy Award for Best Original Song, one of nine  nominated songs that year. Here Alice Faye sings the song from the movie soundtrack:

The song  was recorded in 1943 by, among others, Frank Sinatra and Dick Haymes. Haymes’ version was a number one hit for four weeks on the charts that year.

Sinatra recorded his version at his first recording session at Columbia as a solo artist. (He had recorded at Columbia in 1939 as a member of Harry James’s band.) It was arranged and conducted by Alec Wilder with the Bobby Tucker Singers providing the  accompaniment. Sinatra’s version charted for 16 weeks starting July 24 and spent two weeks at number 2.

In Britain, the recording by Vera Lynn was popular due to the ongoing Second World War.

      DICK HAYMES

   FRANK SINATRA

          VERA LYNN  (UK)

WE HAVE TWO PERSONAL FAVORITE RENDITIONS OF THIS BEAUTIFUL LOVE SONG
BOTH VERSIONS WERE RELEASED ORIGINALLY ON COLUMBIA RECORDS

DORIS DAY FROM HER 1958 ALBUM
"HOORAY FOR HOLLYWOOD"

ROSEMARY CLOONEY AND HER SINGLE RECORDING WITH HARRY JAMES

                            SOME OTHER VERSIONS WORTH A GOOD  LISTEN

MICHAEL BUBLE'  (LIVE)

 JOHNNY MATHIS (LIVE)

BERNADETTE PETERS.