sexiest sounding female vocalists?

I don't know if they are the ultimate in 'sexy', but some of my favorites:

Uniit Carruyo
Patricia Barber
Christy Baron

I think it depends on the song each is singing in regards to how 'sexy' their voice is...

I think it's a toss up between Moms Mabley and Minnie Pearl.

Mejames
To be a jazz fan and you`re not hip to Shirley Horn -HERE`S
to LIFE.(shame on you) no one does it any better.

I just heard Marlene Deitrech (sp?) singing The Little Drummer Boy, from the 40's, a couple of weeks ago and it was pretty hot. Also remember Nena singing 99 Red Balloons in German from the 80's, hey maybe I just have a thing for german chicks.

Wes

I agree about Dietrich. Laura Nyro was pretty hot. But the sexiest number I ever heard was by--wait for it--Nana Mouskouri, on "Nana Mouskouri in New York," available today on Mercury CD and on vinyl reissue. The first track, No Moon at All, is quite warm, but the fifth, Hold Me, Thrill Me, Kiss Me, will have you remembering all the times your teenage girlfriend wouldn't let you go below the chest.

As a close second, try 'C'est extra' on Renée Claude's collection of songs by Léo Ferré, "On a marché sur l'amour". You gotta know French for it...