...damned if I know why, but this song is intoxicating, the singer is Frederika (or Fredrika) Stahl, whom I have never heard of.
I hope you enjoy this as much as I do:-
Twinkle, twinkle - Fredrika Stahl (http://www.youtube.com/watch?v=k0IHBiL1TBg#)
She also does some light jazz...