In the meantime, here is 16-20 in my list:
The Sopranos
I love these singers, but I don't always enjoy listening to their songs. I appreciate the fact that they made the movies more high high brow and I appreciate their contribution to film, but I'm just often not in the mood to sit through their numbers. However, I want to include them because they were a significant contribution to the musical genre and were immensely talented. Besides, I do like some of their songs. It's just that when we get into the long, lyrical ballads I get a little immature and skip forward. Ironically, my favorite songs of theirs are often the less classical sounding pieces.
Kathryn Grayson

Ann Blyth

Shirley Jones

Jane Powell

Irene Dunne

Deanna Durbin was amazing as well, but I've only seen in her one film. I am working on that!