Which female artist


Hi all
Just wanting to know if anyone can add to my list, of similar sounding female singers.Here goes , just to start the ball rolling.
Gretchen Lieberum "brand new morning"
Rickie Lee Jones "priates , flying cowboys , the magazine"
Dido " life for rent , safe trip home ( my favourite at the moment )
Mary Chapin Carpenter " between here and gone"
Kathyrn Williams " dog leap stairs , old low light "
Any help of finding new female singers , or even similar male singers, would be great .As always looking for somthing new to listen to
cheers lancer
lancer181
I would also highly recommend Jennifer Warnes (The Hunter, The Well and Famous Blue Rain Coat). But I am also surprised that no one has mentioned Mary Black, one of my all time favorites. I especially like No Frontiers and Holy Ground, but almost anything she did when Declan Sinnot was with her is outstanding in my opinion.
Here's a few more:

kd lang - Hymns of the 49th parallel
Kate and Anna McGarrigle
Eliza Gilkyinson
Gillian Welch
Cassandra Wilson
Iris Dement
Mary Gauthier
K T Tunstall
Patty Griffin
cheryl Wheeler
Patty Larkin - great guitar work!
A Fine Frenzy - One Cell in the Sea
Carrie Rodriguez - She Ain't Me
Adele 19
Tristin Prettyman - Hello
Sara Bareilles - Little Voice
All Melody Gardot
I know I sound like a broken record whenever these "recommend someone that sounds like..." threads come up, but the obvious answer to this question is to join the Pandora music service. Just create a "station" for an artist you like and Pandora will create a playlist of similar sounding artists. Believe me you will find it addictive.