Ariana Grande has apologised to the actress who plays horror icon Elvira after she accused the singer of ignoring her during a meet-and-greet. Actress Cassandra Peterson, who's best known for her ...

Cassandra Peterson (a.k.a. Elvira ... sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest ...

Case in point, Rob’s latest casting choice will be an interesting addition to a PG film: Cassandra Peterson, AKA Elvira, Mistress of the Dark! Rob posted the following message to his Instagram: ...