United Kingdom, Aug. 13 -- Jessica Lange only agreed to return to American Horror Story if she got "a musical number".

The 77-year-old actress stepped away from the terrifying anthology series after season four (Freak Show), but creator Ryan Murphy has been able to bring her back alongside the likes of Sarah Paulson and Evan Peters for the upcoming 13th run.

Ryan told Vogue magazine: "I think when you have a show like American Horror Story that has become so long-running and popular, you go back to the origin story of it.

"And Jessica, that first season, won every award on Earth. When I wanted to turn the show into an anthology, which at that time was really unheard of, she was the first to say, 'Great.' And then we had Asylum, Coven, ...