By any million chances...
...can it be
Kings of Tomorrow track from 10 years ago?? (Kings of tomorrow, as the one with Sandy Riviera)
There was this black lady singing with great voice "Let it go"...
Hold on, please, I try to find a sample for you. I'll be back.
I'mBackEdit: try this, maybe you can recognize from this short sample:
http://www.ukrecordshop.com/item/kin...-grateful.html
The lady has a name too, she is Dawn Tallman.
2nd edit: found much better link for you, and it has exactly those words there "release me"+"let it go":
http://ligamusic.com/Lyrics/2019839/...Let_it_Go/mp3/