Emma Roberts has revealed how frightened she was when filming some of the creepier scenes in American Horror Story.
The We're The Millers star joined the scary show in season three as movie star Madison Montgomery, who also happened to be a witch.
Speaking on the red carpet at television festival Paleyfest, Emma revealed she found it hard to keep her cool when it got dark.
"We do a lot of night shoots so will be working until 4am in these old buildings in New Orleans and you are looking over your shoulder down the hallway sometimes.
"I am so terrified at the thought of ghosts and movies like The Shining scare me so much and so I am the person that is saying it's haunted and everyone is telling me to relax. I am the person checking under the bed and behind the shower curtain and there is nothing there but I'm terrified."
Emma said joining the anthology series was a completely new experience but something she fully embraced.
"I jumped into American Horror Story thinking I would have to do stuff out of my comfort zone but I would just have to do it. I loved the character and the show so much it just made it fun and challenging that as an actress I got to do stuff people would never expect of me."
The actress, who is engaged to co-star Evan Peters, is yet to sign on for the fourth season entitled Freak Show but said she hopes to be back for it.
"Freak Show is going to be so cool, I loved that it is period and I love that every season goes from contemporary to period and that keeps it so exciting."
American Horror Story is expected to return to Fox later this year.