We need some female blues singers. None better then Etta James.
http://www.youtube.com/watch?v=6KOUaG6O6eE
There are plenty of classic male blues artists, but the ladies are a bit thin on the ground. Those that made it really shine.
An awesome combination - Etta James & Audrey Hepburn
http://www.youtube.com/watch?v=EUdtG3Er_-s