Well....Sure glad this took off - I will be with Tom chasing down new opportunities as I have not heard of most of these. Excellent!! I was going for the Pure and Powerful but favorite works too.
I'll add a couple more

T.V. Carpio - I Wanna Hold Your Hand
Yvonne Elliman - most of JC Superstar

Those who like Allison Krause should check out
Sierra Hull

A few faves not necessarily in the pure and powerful
The Andrews Sisters
Mary Travers
Belinda Carlisle


"A fanatic is someone who can't change his mind and won't change the subject" Churchill