It doesn't say much for the singer when he has to tack on the voice of a singer who's been dead for nearly forty years, at least he didn't destroy the definitive version by Peggy Lee. I think the King would have found it quite funny.
I don't think the King would mind at all.
Didn't Natalie Cole do the same thing with one of her farther's songs?
I think it's a good track, and take my hat off to the technology.