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
MTV Unplugged (Katy Perry EP) debut", though he noted that her flaws were "amplified" during the performance. Sahar from Blogcritics was more positive about the set, writing that although Perry was not the "best singer out there", she made up for it "in catchiness and... adorableness". The contributor was more negative of the acoustic version of "I Kissed a Girl" and the fact that MTV cut out parts from the video recording: "What I'd like to have seen is for MTV to make Katy Perry enter into an unscripted dialog with the fans that are there, film the whole thing and put that on a