Katy Perry’s Star-Studded ‘Swish Swish’ Includes A Game Of Thrones Cameo

Meet the key players in Katy Perry’s ‘Swish Swish’ music video: Nicki Minaj, The Mountain from ‘Game of Thrones,’ Gaten Matarazzo from ‘Stranger Things,’ Jenna Ushkowitz from ‘Glee,’ and more celebrities.