Fleetwood Mac rocker Stevie is often on the roads with her bandmates, and also tours extensively as a solo artist.
And while Emma is a massive fan, she still needs to get to one of the "Landslide" singer's shows.
"I'm obsessed with her, and I sometimes can't function around her," Emma admitted to Collider. "I have a half moon tattoo, for a couple reasons, but one of them is Steve Nicks. She's definitely someone that I love to work with. She's so fun to chat with. She's Stevie Nicks! She's so talented, it's insane. I've never seen her in concert, so I'm definitely gonna try to go this year. I've been wanting to go so badly, and I'm always working. This year, I've already put it on the calendar."
Fleetwood Mac is in the middle of their North American trek, and will next be stopping off in Saint Paul, Minnesota.
While Emma didn't specify what venue she'll be attending, she did reiterate that a Steve Nicks concert was at the top of her to do list.
"I'm finishing this ('American Horror Story'), and then I'm seeing Stevie Nicks in concert," she smiled. "And then, there is something. I wish I could tell you now, but I can't. It will be announced soon. I'm really excited about something that's gonna start in January, and it's something that requires me to start training soon, so that's gonna be cool. I'm just really excited to really prep for something like that."
The eighth season of Brad Falchuk and Ryan Murphy's hit show is airing now.