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Fans are now getting proof of Stevie Nicks' upcoming appearance on "American Horror Story: Coven"  Show co-creator Ryan Murphy offers a photograph of the Fleetwood Mac singer on the set. 

She's dressed in black, with a silver heart and crescent moon necklace and thigh-high brown boots.  Murphy accompanied the photo with the message, "She’s here! Stevie Nicks on the set of Coven!"  However, Murphy isn't disclosing any details on the episode, and an air date hasn't been announced yet. 

Nicks' name and music has been referenced often since "AHS" launched the "Coven" chapter last month. 

The character Misty Day, played by Lily Rabe, is obsessed with the singer who, in real life, has had to shake longheld rumors linking her to witchcraft.  Those rumors reportedly made Nicks hesitant to sign on when she was first asked to appear on the show.