I LOVE me some Nina Simone... her deep powerful voice and wonderful piano playing just, aaaah, I don't know how to describe. I just love her. If you're a fan of blues and jazzy ballads, you need to research her now, you won't be disappointed. I Hold No Grudge is one of favorites, give a listen.
Bonus: Since I Fell for You another great sad romance jazz ballad.
Image Source [If Charlie Parker Was a Gunslinger,There'd Be a Whole Lot of Dead Copycats]