“American Horror Story” has a wickedly delicious cast this season -- but according to reports, not everyone is getting along on “Coven.”

In late October, Star Magazine reported that “American Horror Story: Coven” co-stars Emma Roberts, 22, and Gabourey Sidibe, 30, have found themselves in a nasty little feud while filming season 3.

“Emma complains about the tiniest things and won’t speak to crew members,” an insider told the magazine. “Gabby finally told Emma to cut her attitude and stop being rude.”

For those that have been keeping up with season 3 of the hit FX mini-series, Sidibe's and Roberts' characters don’t get along on screen. Sidibe, who plays Queenie - a witch with the power to be a human voodoo doll -- even went as far as to inflict a stab wound on the hand of Roberts’ character, Madison. While Madison’s current situation doesn’t leave her with the ability to retaliate, Queenie took another swing at her fellow witch in episode 4 -- this time verbally. With the Council of Witchcraft investigating Madison’s disappearance, they asked Queenie who they thought might want the young woman dead. Queenie replied, “It’s probably because she got wasted and offered the grim reaper a hand job or something.”

Star Magazine’s source continued that since Sidibe’s confrontation, Roberts has been a “little” nicer to the crew, but “still acts like she’s above everyone else.” However, both the actresses are calling the story of a feud completely false. On Monday, Nov. 4, Gabourey Sidibe took to Twitter to dispel the “Coven” fight rumors.

“What?! @RobertsEmma and I are in a feud?! You sure? #thatsmyhomegirl #aintnobodyf*ckinwitmyclique,” Sidibe posted along with a photo of her co-star. Roberts re-tweeted the photo.

The picture appears to be from Halloween with Sidibe in a mask and Emma Roberts wearing a pink sweatband -- presumably from her jazzercise Barbie costume.

You can catch both Gabourey Sidibe and Emma Roberts on “American Horror Story: Coven” when it airs on FX on Wednesdays at 10 p.m.

Do you think the feud between the two co-stars is real? Let us know your thoughts in the comments section.