Pretty hot. The harmonizing does give it a Janet sound, although it sounds like something from the Damita Jo era. I hope she doesn't put this on a new album.
It actually sounds 20 Y.O.-ish to me, and ***** on all the filler that that album has. Still sounds far too dated like the rest of the album though.
But I have to admit I have gotten addicted to this today. Whoever it is, she has a helluva weak voice, and it sounds remarkably like Janet's at some points.