He signed with Capitol Records and released several critically lauded albums. Francis Albert Sinatra (December 12, 1915 — May 14, 1998) was an American singer, actor, and producer who was one of the most popular and influential musical artists of the 20th century. Youll never know just how much I miss you. Youll never know just how much I care. He is one of the best-selling music artists of all time, having sold more than 150 million records worldwide.... Francis Albert Sinatra (December 12, 1915 — May 14, 1998) was an American singer, actor, and producer who was one of the most popular and influential musical artists of the 20th century. Beginning his musical career in the swing era with Harry James and Tommy Dorsey, Sinatra became a solo artist with great success in the early to mid-1940s. Then I only have this to say. You went away and my heart went with you I speak your name in my ev'ry prayer If there is some other way to prove that I love you I swear I don't know how You'll never know if you don't know now You'll never know just how much I miss you You'll never know just how much I care And if I tried, I still couldn't hide my love for you You ought to know, for haven't I told you so Darling, I'm so blue without you I think about you the live-long day When you ask me if I'm lonely Then I only have this to say You'll never know just how much I miss you You'll never know just how much I care And if I tried, I still You went away and my heart went with you I speak your name in my ev'ry prayer If there is some other way to prove that I love you I swear I don't know how You'll never know if you don't know now You'll never know just how much I miss you You'll never know just how much I care You said good-bye, no stars in the sky refuse to shine Take it from me, it's no fun to be alone With moonlight and memories You'll never know just how much I miss you You'll never know just how much I care And if I tried, I still couldn't hide my love for you You ought to know, for haven't I told you so A million or more times? Writer (s): gordon/warren. Darling, Im so blue without you. When you ask me if Im lonely. He is one of the best-selling music artists of all time, having sold more than 150 million records worldwide. You went away and my heart went with you I speak your name in my every prayer If there is some other way to prove that I love you I swear I don't know how You'll never know if you don't know now You'll never know just how much I miss you You'll never know just how much I care You said goodbye; no stars in the sky refuse to shine Take it from me: it's no fun to be alone With moonlight and memories You'll Never Know lyrics © Warner Chappell Music, Inc. I think about you the live-long day. Frank Sinatra – You'll Never Know Lyrics. Sinatra left Capitol to found his own record label, Reprise Records, toured internationally, and fraternized with the Rat Pack and President John F. Kennedy in the early 1960s.