Grande, 22, said she bonded with 57-year-old Madonna over Kabbalah, a school of thought that originated in Judaism, reported Female First.
"I practice Kabbalah as well, so that was one of the first things she mentioned, because I had my Zohar in my pocket," the young star said.
"And we danced together at her Oscar party. That's all I can ever ask for. She inspires me endlessly. I'm so inspired by her fearlessness," she said.