Katy Perry following her ex-husband Russell Brand's transition from comedy work to activism, and released a concert film titled "Katy Perry: The Prismatic World Tour" through Epix, which took place during her tour of the same name. Perry also made a cameo appearance in the music video for Madonna's song "Bitch I'm Madonna" in June 2015. The following month, she released another fragrance with Coty, entitled Mad Potion. In September 2015, she appeared in the documentaries "Katy Perry: Making of the Pepsi Super Bowl Halftime Show", which followed Perry's preparation for her Super Bowl performance, and "", which followed the life and
Katy Perry Live: Witness World Wide like Katy Perry anymore." Perry received mixed responses from critics for "Witness World Wide". Joey Pucino of "The Sydney Morning Herald" called it a "bizarre publicity stunt." Journalist Amanda Petrusich called it "tedious" and dubbed her therapy breakdown "premeditated," writing in "The New Yorker", "Every moment of "Witness Worldwide" I saw felt heavy with promotional intention, and low on spontaneity or frankness—which is also what makes the album itself a slog." Others applauded her honesty. In the "Australian Daily Telegraph", Sarah Daffy praised Perry and dismissed her critics. Daffy addressed the reality of mental health and suicide in Australia, and