I like finding music artists that are little known or finding songs by the well known, but didn't make it big.  Beth Hart's music I have followed since 1997 or there about.  I first heard her sing Am I the One on the radio.  Called the radio station to find out who she was.   Her live version here is R rated.   Everyone should spend some time listening to her.  SHe sings with great emotion.
 http://youtu.be/J5_G6A28uYs
Here she is on TV
http://youtu.be/U8sDJuWMp94
THis is a latest effort
http://youtu.be/H_sR8w23QeY