Los Angeles, July 11 -- Singer-actor Ariana Grande has exited the upcoming 13th season of American Horror Story after production dates for the FX series conflicted with her ongoing Eternal Sunshine tour, according to E! News.

Grande was announced as part of the Season 13 cast in October alongside franchise regulars Jessica Lange, Sarah Paulson, Evan Peters, Angela Bassett, Kathy Bates, Emma Roberts, Billie Lourd, Gabourey Sidibe and Leslie Grossman.

Speaking to Variety in November after her casting was announced, Grande had teased her role while keeping details under wraps.

"I know a little tiny bit about the role but what I know I can't say," she said.

"I'll probably have a very tiny thing to do in it, but I'll be grateful to be a pa...