Soundtrack Questions

I've looked under the soundtrack listing on the site but it only has 2 songs. For 1940's music experts, I have 2 questions about the arrangements used on the radio in this game. Who sings Saturday Night, and who sings I only have eyes for you? I know the Frank Sinatra arrangements but I don't know the two female singers. They are very well done and I'd like to procure them...I'm sure they are famous. If anyone knows I'd be much obliged.