If you've heard Ghost's Popestar EP, you'll notice that there are female vocals on "Missionary Man" and "Bible." The band revealed over the weekend that the vocals were contributed by the immensely talented Fia Kempe of The Great Discord.
Kempe performs with the above facepaint on, and has all her pictures taken that way as well, so besides Ghost and Kempe possibly being friends in day-to-day life, the whole "masked musician" bit fits as well! Not to mention the tone of her voice is a great fit for Ghost. Who knows, maybe she'll make more appearances on the next full length?
If you haven't heard The Great Discord yet, you really ought to.
[youtube]https://www.youtube.com/watch?v=p9pFb3PcJ7Y[/youtube]