Few artists have made a cultural impact on pop music and dominated the charts in our generation, like singer and songwriter Katy Perry. She's part of a small group of artists whose unforgettable records, such as "I Kissed A Girl," "Dark Horse", and "California Gurls," helped shape an entire decade (the 2010s) and genre. Her work has opened the doors for many of pop music's more recent stars, such as Charli XCXand Olivia Rodrigo, who have cited Perry as an inspiration in their work. In an over two-decade-long career, Katy Perry has stayed relevant with her old and current music. As the talented songstress embarks on her fifth world tour, Lifetimes, which kicked off in April 2025 in Mexico City, it's safe to say that her work, much like her vibrant personality, will have a lasting impact for decades. But which song in her extensive music catalog is her favorite? The answer to that question might come as a shock to fans.