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 discography singles selling over 5 million (in order of release date: "Hot n Cold", "California Gurls", "Firework", "E.T.", "Roar", and "Dark Horse"). Perry also holds the record for the most 6-million-selling songs, with three of her songs—"Firework", "Roar", and "Dark Horse"—selling over 6 million copies. All three have also received Diamond song certifications from the RIAA, making her the first artist to accomplish such a feat. At age 16, she released a self-titled gospel album in March 2001 under her real name Katy Hudson, which failed to chart in any music market. After Perry signed with Capitol Records in April 2007,