This remix by Majesty Brian Jacobs (ex-Apes and Androids/Call Florence Pow), was I guess made/shared a couple of years ago. I hadn't checked it out until like a month ago when he shared another one of his jams on Soundcloud.
But I really like this remix. When Majestyy does these, there's always a cool upbeat electronic flare added to them, so much so, I wonder if the original would sound weird to me after getting used to these remixes.
So, not a REMIX but actually a cover of another Rihanna tune, "Stay" was just shared by of all people, Mayer Hawthorne.
Go Here to Stream it (of course no embed that I can tell, lame as it is, but not surprising).