Ariana Grande is apologizing after Cassandra Peterson, who plays horror character Elvira, recalled a bad encounter with the singer.

After Cassandra Peterson called Ariana Grande her worst celebrity encounter, the singer addressed meeting her 'around 7 years ago,' writing in an Instagram comment on Monday, Oct. 21 that she was 'so disheartened to see

In a recent discussion, Elvira, the iconic horror character brought to life by Cassandra Peterson, stirred up controversy with her comments about pop star Ariana Grande. The revelation has sparked significant interest online.

Cassandra Peterson, a.k.a. Elvira, is making waves on social media after a video from a recent event went viral in which Peterson recounted that Ariana Grande once brought several family members and friends to an event and asked Peterson to take photos with everyone — but declined to take a picture with Peterson.

Ariana Grande has apologized to actress Cassandra Peterson, known for her iconic role as “Elvira, Mistress of the Dark,” after Peterson claimed the singer ignored her during a meet-and-greet event. Peterson recently shared in a panel discussion that Grande had requested tickets for her and her family to attend one of her stage shows.

Mistress of the Dark Elvira didn't hesitate to share candid details when asked about her celebrity encounters.

Coming from the beloved Mistress Of The Dark, that must have sting. Yesterday (October 20), Ariana Grande took to the comment section of Elvira’s Instagram post (viewable here) about the exchange to issue an apology.

Actress Cassandra Peterson, who's best known for her Mistress of the Dark alter-ego, said Ariana Grande had requested tickets for herself and family members to one of her stage shows. She told a panel that she'd posed for photos and signed autographs for "all her friends and relatives" but that Ariana had refused to pose for a picture in return and left before the performance.

Ariana Grande is extending an olive branch to Elvira, a.k.a. Cassandra Peterson, after the Mistress of the Dark publicly recounted an unpleasant past encounter with the Wicked star. Commenting on Peterson's recent Instagram post featuring a viral video accusing Grande of rude behavior at an Elvira show,

Elvira, whose real name is Cassandra Peterson, is speaking out about her experience with Ariana Grande. The Mistress of the Dark says the pop star was her worst celebrity interaction.