Katy Perry knows how to rock the stage unconditionally.

After all, the singer made an impression at the 2024 MTV VMAs, hosted by Megan Thee Stallion—on Sept. 11, with an impressively high-flying performance that included a medley of many of her chart-topping hits. And the 39-year-old shared an unexpected secret about the performance with her fans in the first line of her Michael Jackson Video Vanguard Award acceptance speech.

“Thank you,” she told the cheering crowd, “I did all that on the first day of my period, can you believe it?” (For more moments you may have missed on TV, go here.)

During her performance, Perry wore a sculpted nude body plate and black panties with thigh-high boots. She began the nine-minute production by flying through the air while singing her hit “Dark Horse.” The aerial acrobatics continued for several more minutes as she raced over the heads of her dancers while singing her otherworldly single “ET.”

Once on the ground, the “Woman’s World” singer — who shares a 4-year-old daughter Daisy Dove with her long-term fiancé Orlando Bloei—kept her energy going, running and sliding across a slanted platform as she screamed hits like “Teenage Dream,” “California Gurls,” “I Kissed a Girl,” “Firework” and more.