Credit: Michele K. Short/FX © 2013 Fox Broadcasting Company Photo: Lily Rabe and Stevie Nicks on the Set of American Horror Story: Coven

American Horror Story: Coven screams back to our TV screens tonight, January 7, with one notable addition: Fleetwood Mac singer Stevie Nicks, who plays herself in a highly-anticipated cameo. And she is just as enthusiastic about the role as we are to see it.

For Stevie, her AHS journey began when co-creator Ryan Murphy asked her for rights to her songs to support Misty's storyline. "I watched the first episode and I was like, 'Oh my God, this is totally … weird and twisted and the strangest, oddest thing I have probably ever seen on television,'" she tells the Los Angeles Times.

After canceling tour dates following her band mate's cancer diagnosis, Stevie suddenly found herself with extra time. "So I said, 'You know what? I wanna be on the show," she recounts to Us Weekly. "'I just want to walk through the house in a long black dress and look stunningly beautiful and say, "Witches! I'm here!" and "Goodbye," and then walk down a long hall and out a back door.'"

But when she got to the New Orleans set, she realized that her part was much more substantial. "I was pretty terrified," she reveals to the Times. "Honestly. I did not sleep well … I was scared to go there. When I went in the next day, I thought, I’m never going to be able to do this."

Credit: Frank Ockenfels/FX © 2013 Fox Broadcasting Company Photo: Jessica Lange in American Horror Story: Coven

And despite the grueling hours, she had a blast, especially in bonding with her fellow witches. "I got to know Emma [Roberts], I got to know Gabby [Sidibe], I got know Taissa [Farmiga], I got to know Lily [Rabe]," she tells the newspaper. "And I got to know… I mean, I think I got to know Jessica [Lange] a little bit. Um, but I really got to know Fiona because Jessica’s Fiona is so real that you can’t help but forget she’s Jessica Lange. You absolutely accept her as Fiona Goode."

She adds in her Us interview: "I got to really watch Jessica Lange work. I've never gotten to watch a really great actress be a great actress."

Stevie also has high praise for Lily Rabe, who had to do the rocker's signature twirling dance move over and over again in her role as Misty: "At first I wasn’t even thinking about this poor girl twirling herself into the universe," she admits to Vulture. "Lily gets an Academy Award for that. You can twirl for so long and then you just drop dead. But she did it. She almost passed out at the end of every take because no one is used to twirling that much."

She tells Us that AHS was the perfect excuse to cross acting off her bucket list: "I don't know of anything that will ever come along that will be this cool. I'm not an actress. This was a perfect fit for me."

American Horror Story: Coven airs Wednesdays at 10 p.m. ET on FX.

Source: Los Angeles TimesUs WeeklyVulture

Dan Clarendon is an assistant editor at Wetpaint Entertainment. Follow him on Twitter and Google+!