Name that song!

I have seen a commercial for this show on CBC and there's an incredibly sexy song playing. It's a female singer, and some of the words are "It must be the devil/I saw the evil/now I believe/bringing out the devil in me" though some of those may be incorrect as some are hard to hear. I tried researching the lyrics but google just gave me a bunch of bible links. Does anyone have a clue what this song is or who sings it?