What are your top 3 favorite female singers?

+ 1 for: Kate Bush, Neko Case, Annie Haslam, KD Lang & Joni Mitchell.

Here's a few who haven't been mentioned yet:

Karen Bergquist (Over The Rhine)

Dominique Durand (Ivy)

Jonette Napalitano (Concrete Blonde)

Kim Richey

Sharleen Spiteri (Texas)

Tracey Thorn (Everything But the Girl) 

Thanks for all the input....I need to save up some funds as there are many new artists/cds that I want to add to my collection. 

What?
I can’t even do three Latin female singers without feeling I’ve screwed up and missed the most important.  (Astrid Gilberto, Adriana Calcanhotto, Gal Costa)
But here goes nutin:

Maria Bethânia
Que falta você me faz - Músicas de Vinicius de Moraes  
Tua 
My Backyard

Concha Buika

Mi Niña Lola (2006)
Niña de Fuego (2008)
La Noche Más Larga (2013)

Eliane Elias

Eliane Elias Sings Jobim 

Well, since we're two pages in and nobody has mentioned either of these two, I feel compelled to do so:

Cécile McLorin Salvant (Woman Child)

Karrin Allyson (In Blue)

Jennifer Warnes absolutely belongs.