The singer will guest star on an upcoming episode of the FX series.
Creator Ryan Murphy revealed the guest spot news Tuesday over his official Twitter account. "Guess who's visiting the Coven? The legendary Stevie Nicks!"
This is the third season of "American Horror Story," which focuses on witches. Season one centered on a haunted house, while season two followed a psychiatric institution.
The show, which airs Wednesdays at 10 p.m. Eastern, has already been picked up for a fourth installment to air in 2014.