Nicki Minaj's Grammy performance part of a movie she's writing

(CBS/AP) Even though Nicki Minaj's performance at the Grammy Awards -- that featured dancing priests and an exorcism -- confused some and offended others, the reaction isn't keeping her from continuing to write the movie version of the whole act.

Pictures: Grammys red carpet
Pictures: Grammys show highlights

"You know how people write plays and movies? That's what I did. I wrote that and I gave the world a tiny little preview of what was to come. And so I have to perform it on the set in which it would be in the movie, right?" she said.

Minaj made the comments Wednesday night at an event for Viva Glam MAC cosmetics, for which she is an ambassador. Proceeds from the sale of the special edition MAC products benefit HIV/AIDS programs worldwide

The 29-year-old, who is known for her outrageous style, walked the Grammy red carpet in an oversized red robe with a man dressed as a pope at her side. She said her performance, which featured a film clip, was partly inspired by the 1973 movie "The Exorcist."

During her Grammys performance she sang renditions of her songs "Roman's Revenge" and "Roman Holiday." Roman is Minaj's male alter ego.