From Movieguide:
Amid WICKED’s massive build-up and box office run, Ariana Grande opened up about how she practices occult activities, even calling herself “the witchiest witch.”
“I sit somewhere between being a literal witch,” Grande told Zach Sang, “A literal witch, I’m not kidding, and being the most cut and dry.” Later in the interview, she said, “I am indeed the most witchiest witch,” before she detailed drawing tarot cards for actor Jim Carey.