Katy Perry is the latest performer to experience a mishap while flying above a crowd of fans, just weeks after Beyoncé paused her show briefly in Houston due to a suspended car malfunctioned. MORE ON ARTS: Hill Country arts venues along Guadalupe River suffer major damage from the flood Perry's fans in San Francisco on Friday night feared for the pop singer after a large butterfly-shaped prop carrying her through the air jolted and caused her to slip in her seat - creating a slight pause during her performance of her hit song "Roar.