Katy Perry keeps the Prism momentum going with a teaser for the upcoming video to her new single “Birthday”. In the teaser, Katy Perry channeled her inner master of disguise. We got the chance to meet Goldie the Dancer and Yosef Chulem the MC to Kris the Clown and Princess Mandee and they are hilarious! Today the pop superstar released the full 8-minute video, which consist of her 5 characters actually crashing real birthday parties! It’s hilarious! From an old funeral home to party to a 5-year old’s birthday celebration, Kety perry pranks them all! Katy has been killing it with hits such as “ROAR” and “Dark Horse”! Check out Katy Perry’s “Birthday” below!