Katy Perry experienced a frightening onstage mishap Friday night during her Lifetimes Tour stop at the Chase Center in San Francisco. While performing her hit song “Roar,” the pop star was seated atop a large butterfly-shaped prop that was designed to fly above the crowd.

Perry immediately stopped singing but quickly regained her balance and composure. After looking up at the hanging prop, she resumed her performance as the butterfly swung above the stage.