The 'Last Friday Night' singer told Rolling Stone that she pays no attention to any bad reviews that she receives as she believes that her record sales speak for themselves.
"Whenever people ask me about having bad reviews, I'm like, 'Have you seen the run I've had? Have you see the numbers?' Numbers do not lie!" Perry said.
However, the 25-year-old went on to say that she does not take herself too seriously and is well aware that her music tends towards lighter fare.
"I'm not a dummy. I know 'California Gurls' isn't going to save the world. But I got a lot of heart from my upbringing and I put a lot of heart in my songs," she said.
Perry recently celebrated one year in the Billboard Hot 100's top ten with singles from her latest LP Teenage Dream.
She has said that she will hold an alcohol-fuelled party as a celebration at the end of her current tour.
Watch Katy Perry's video for 'Last Friday Night (T.G.I.F.)' below: