Here is Kitty Kallen's fine vocal, on "I'm Beginning to See the Light," with Harry James and his Orchestra, from 1945:
https://www.youtube.com/watch?v=hP7RsdiiHWA
And this is a lovely recording, a hit from 1944, featuring Ms. Kallen and Bob Eberly, singing "Besame Mucho" with Jimmy Dorsey's orchestra:
https://www.youtube.com/watch?v=6seAPfA8ahI
Ms. Kallen died today at her home in Mexico, at age 94.
http://www.nytimes.com/2016/01/08/arts/music/kitty-kallen-big-band-singer-of-besame-mucho-dies-at-94.html