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 Katy Perry Live: Witness World Wide Katy Perry Live: Witness World Wide was a four-day YouTube live stream by singer Katy Perry airing between June 8–12, 2017. The special features Perry living in a "Big Brother"-style house with cameras promoting her fifth studio album, "Witness". It began on June 8, and concluded with a free concert on June 12 in Los Angeles. The live stream featured Perry doing activities in the house, including eating, playing with her dogs, and sleeping as well as other moments that received large amounts of media attention. During a one-hour therapy session, Perry became very