So many great nominees, and a few new to me.I'll have to do some research.
A few I didn't see:
Bonnie Dobson, who wrote and first recorded Morning Dew.
BONNIE RAITT, or did I miss her?
If you've never heard the all-girl group, ISIS; Carol MacDonald has a delicious contralto.
Speaking of contraltos, Chrissy Amphlett of the Divynals, Amy Winehouse, Johnette Napolitano of Concrete Blond..Luv 'em
Did we miss Margo Timmins of Cowboy Junkies?
There are too many amazing background singers to mention; but the Blu-Ray of 20 FEET FROM STARDOM covers many of them.
Of special merit are Clair Torey (Great Gig in the Sky) and Merry Clayton (Gimme Shelter). Rosemary Butler is another fav.
I don't know if we can count her, because she is an opera singer; but Olivia Safe contributed such amazing vocals to Jeff Beck's SERENE, that I thought it was a synthesizer. Never heard anyone hit the highs she does.
Three I am rooting for:
Nicole Atkins
https://www.youtube.com/watch?v=lefhIHdWs3I
Frazy Ford for her unique sound
https://www.youtube.com/watch?v=PXRrySTujn8
Bonnie Bishop, an evolving talent.