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.

As The Lifetimes Tour stopped in San Francisco, Katy Perry had a scary moment mid-air above the audience at Chase Center. The 12x Grammy nominee was riding around the venue on a huge mechanical butterfly during Friday’s show when the rig it was hanging from malfunctioned and jerked to one direction,

The “Part of Me” singer was in San Francisco on Friday night performing as part of her Lifetimes Tour, when a giant butterfly prop she was riding malfunctioned as it hung suspended over the crowd.