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
Thinking of You (Katy Perry song) a soldier (played by Matt Dallas), in battle during World War II. Perry began playing the song during gigs as early as 2006, and performed the song on all of her concert tours: the Hello Katy Tour, the California Dreams Tour, the Prismatic World Tour and . The song was included in the international soundtrack to "India, a Love Story", a Brazilian telenovela and becoming most successful in Brazil. "Thinking of You" was written by Perry and produced by Butch Walker. Amateur video of Perry performing an entirely acoustic version at the Hotel Café in Los Angeles as early as