Spoilers for Stevie Nicks' appearance on 'American Horror Story: Coven'

American Horror Story: Coven has referenced Fleetwood Mac lead singer Stevie Nicks numerous times during the season, mostly through Misty Day (Lily Rabe) and her love for the artist. But the singer will soon appear on the show in the flesh, and Rabe has revealed some details about her role.

News had already broken that Nicks would play herself on the show. Fiona (Jessica Lange) brings her around to show off the perks of being the new Supreme. But Rabe offered some more behind-the-scenes information about the role in the "Spoiler Chat" column at E! Online:

"I can't get enough of American Horror Story: Coven this season. Got any witchy scoop?
Double, bubble, toil, and trouble, we need Stevie Nicks on the double! (Ack, sorry we know that was majorly lame.) Our amazing Marc Malkin recently chatted with Lily Rabe and she revealed a little bit of behind-the-scenes scoop that you've just gotta hear. 'She brought me this amazing black velvet jacket and lace skirt from her early Fleetwood Mac days.' Rabe shared, 'It's great sort of witch appropriate gear.' So what will Nicks be doing on the show? The Coven star gushed, 'There's singing and there's dancing and there's musical things that happen. I might be doing some shawl spinning.'"

It would make sense for Coven to use Nicks' vocal talents on the show, particularly because Misty Day is such a big fan of hers. If Nicks is supposed to be a token of the perks of being the Supreme, then what better way to show that than by having her sing a duet with her favorite musician?

Coven airs at 10 p.m. on Wednesdays on FX.