The 29-year-old 'Roar' hitmaker says she didn't have the best educational system as she moved around a lot growing up, reported People magazine.
"Unfortunately, I wasn't able to experience the best educational system, because my parents moved around a lot. I was often pulled out of school - even in the middle of the year.
"I ended up being home-schooled and going to really strange Christian private schools before I left to pursue my dream. But even though I didn't always have the greatest education, I was influenced by a lot of my music instructors," Perry said.