Just have to give a shout out to this fabulous new vocal jazz artist called Melody Gardot. To compare her to Norah Jones would be a huge dishonour to Melody, but if you're in the mood for that kind of music I'm certain you will not be disappointed with Melody.
You can sample her songs at her official website.
http://www.melodygardot.com/
I suggest leaving the page open in the background and let the music play while you surf around.
She's currently touring Europe so if you're around the area be sure to catch her live!