Since you’re already sleepless with anticipation in the face of this week’s American Horror Story Stevie Nicks episode, use the long, empty hours stretching before you to ponder specifically which tunes you’ll get to hear. “Stevie Nicks is fantastic in this Wednesday’s COVEN episode. Guess which TWO SONGS she sings?,†Ryan Murphy tweeted Monday. When venturing your guesses, keep in mind that Stevie’s songs are being used as part of a plan to suss out the coven’s new Supreme, and that there is no way this plan will end in anything but a really fabulous funeral pyre.