Most soulful female vocalist


What female vocalist can sing soul like no other , and why .
tmsorosk
Nina Nastasia. So much emotion and sensitivity in her voice. She's an actual folk artist. Her albums are edited on the Touch and Go and Fat Cat Record labels, usually recorded by Steve Albini.
Lady Gaga! After a long day at the widget factory, there's nothing like coming home, popping the tab on a Four Loko and letting the complex emotional nuances of her voice wash my cares away.
Chaka Kahn.

She is a true singer who is very highly regarded and has an excellent track record since the mid seventies. Excellent voice and vocal control. Her vocals always display her connection and emotion with the accompanying musicians/music.

She has been featured on projects with several other well know artist.
Sfar .... After rereading my question I can see the confusion . I meant the singer more than the genre .
A few responders mentioned Aretha , granted she was the queen of soul , but did her voice have that warm , stirring , willowy , soul sound . She could belt it out .
Surprised no one has mentioned Edda James .