Best female vocals on CD

I have read most of the thread and will only nominate names that appear infrequently.
Stacey Kent
Kari Bremnes(Norwegian folk singer)
Kate Rusby(English Folk singer)
Sara K
Eliza Gilkyson
Sarah Massen (particularly, Dreamlife of Angels)
Lori Mckenna
Rosie Thomas
Shawn Colvin

Opera:
Maria Callas of course, best choice Tosca
Vittoria De Losangeles Beechams version of La Boheme, one of the great opera recordings, her entrance in Act 1, is sublime
Elizabeth Sharzkopf, Strauss Der Rosenkavalier, another of the great opera recordings of all time
Janet Baker, In anything, burt Cavali's "Callisto" is a good start

Anita O`Day and the most influential female singer outside of the western world Om kalsoum.

Lisa Gerrard of Dead Can Dance. Not sure if she's been mentioned but I would highly recommend a listen. CD's worth mention are Dead Can Dance "Towards The Within" & "Spiritchaser".

In no particular order ... I enjoy at various moments Natalie Merchant, Suzanne Rhatigan, Tanita Tikaram, Deanna Kirk, Beth Nielsen Chapman, Kris McKay, Holly Cole ...

Ok, here are a couple that might not have been mentioned yet, but I believe would be greatly enjoyed:
- Sophie Zelmani: Love Affair (but basically any of her albums)
- Katja Maria Werker: Contact Myself
- Kitty Hoff: Rauschen (if you can understand German)
- Carol Sloane: Ballad Essentials (on Concord)
- Oh Susannah: Sleepy Little Sailor
- Abbey Lincoln: A turtles dream
- Carmen Cuesta-Loeb: Dreams
- Solveig Slettahjell: Slow Motion Orchestra
- Bic Runga: Beautiful Collision
- Kathryn Williams: Little Black Numbers
- Karrin Allyson: In Blue
- Lisa Ekdahl: Sings Salvadore Poe
- Tierney Sutton: Dancing in the dark

OK, at least one Opera has to be mentioned:
- Sandrine Piau: Händel Opera Seria

I have not given any descriptions, they are all easy enough to look up in amazon or so...and also I think easy enough listening to be enjoyed by most who like what has already been mentioned in this threat. Just beware that most of these tend to be a bit melancholic or at least quite in basic mood :-)

Anyone there who knows a lot of my recommendations? What else would you recommend??