While things obviously worked out for the singer, she admitted that she does have a few regrets about that decision.
"I'm kind of bummed at this stage that I didn't have a great education," she told Yahoo. "I could really use that these days."
However, Perry, 29, said that her experience at school was never typical. Because her parents were always on the road starting new churches, her education tended to take a backseat to her family's moves.
"I was being pulled out of school even in the middle of school and sometimes being home-schooled," she said. "Sometimes we were sent to these really half-Christian, half-education, I-don't-know-what-they-were schools."
Now working with Staples for her "Make Roar Happen" campaign, which raises money for teachers, Perry reflected on how she's tried to continue her learning process as an adult.
"I've learned to educate myself at this stage and how to continue my education at any age," she said. "I'm going on 30 and I'm still very thirsty for information. On tour, we go to different museums and get to soak up all kinds of different cultural experiences."