Modern day female jazz recommendations

Don't forget k.d. lang, granted she's not a dedicated Jazz singer but she can sing in almost any genre with a depth, passion and beauty that's truly over the top. Her Jazz tunes and collaboration with Tony Bennet were just superb.

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Foster 9 Her inclusion in the Monterey Jazz Festival 50TH Anniversary All-Stars Album should have been a clue. If you haven't heard the album "HERITAGE" and the song "HERITAGE" ( my favorite) get it, more ballad than jazz but one of her best albums IMO.

Check out Frank Sinatra's Duets I & II, I know he's a he...but this disc has some great vocals with Carly Simon, Patti laBelle, Chrissie Hynde, Aretha, Barbara Streisand, Gloria Estefan, and on it goes, also there's a duet with Jimmy Buffet doing Mack the Knife. Very Cool... and I was NEVER a fan of the chairman, until now..go figure!
I would LOVE to hear Crissie Hynde do a "jazz" standards type disc!

I also picked up "The Best of Holly Cole". Very nice voice, some neat songs I had never heard as well as some covers like "I've just seen a face" and "Alison".
I'll probably look for some more Holly Cole too.

I am curious. As a result of this post has anyone gone out and purchased any of the artists that were recommended here?

If so how would you rate the artist?