Emma Roberts is set to join the cast of American Horror Story: Coven.

The 22-year-old actress - whose Fox pilot Delirium was not picked up - is close to signing a deal to star in the third season of Ryan Murphy's FX drama alongside her boyfriend Evan Peters, according to TVLine. Emma will join fellow newcomers Kathy Bates and Gabourey Sidibe and returning castmembers Jessica Lange, Sarah Paulson, Taissa Farmiga, Frances Conroy and Lily Rabe.

Although it will focus on witches, Ryan recently promised the third season of the show will be more upbeat than before. "It's a really cool story that we've been talking for a couple years, and this seemed to be the year to do it. What season three is about is more historical in nature. I'm also interested in getting into a horror romance. That's certainly something that's going to be in the water for season three. You're going to see a very different tone in season three, but that's the joy of the show. I think as a person right now I do feel lighter and wanting to embrace something a little bit more fun," he said.