Tonight at the festival, Katy Perry fully embraces the chaotic atmosphere and enjoys herself by crowd-surfing, grinding on security, and having a blast. Her Pyramid stage set is over-the-top with dancing tellies, a winged angel-type rucksack contraption, confetti guns, and a Rihanna quote-based reference. After playing a couple of songs from ‘Witness,’ Katy delivers what everyone came for: pop bangers. She performs hits like ‘California Gurls,’ ‘Dark Horse,’ ‘I Kissed A Girl,’ and ‘Teenage Dream’ while bounding around the stage and interacting with the crowd. The show ends with her diving into the crowd during ‘Roar’ and taking selfies with fans. Katy Perry fully embraces the spirit of Glastonbury and the mayhem it brings.