Went into a store the other day and this disc was playing. Very "bluesy" female vocalist, doing covers of old songs by artists like Aretha. Her name is Joss Stone. When you listen, you'd never guess it's a 16 year old white girl from the UK. Kinda like listening to Johnny Lang and realizing he's not a 65 year old black man.

Joss Stone
http://www.amazon.com/exec/obidos/tg/detail/-/B0000C0FKA/qid=1072737203/sr=1-1/ref=sr_1_1/102-5477245-0955333?v=glance&s=music