Katy Perry: Part of Me 127 concerts from February 20, 2011 to January 22, 2012. Most of the performances were recorded on November 23, 2011, at the Staples Center in Los Angeles, but also included performances in Tokyo and São Paulo. Some of her friends such as Rihanna, Lady Gaga, Adele and Jessie J make cameos in the film. The documentary includes scenes of Perry dealing with the breakdown of her marriage with English actor/comedian Russell Brand. Principal cast Cameos On March 7, 2012, Katy Perry announced via Twitter that she and Paramount Pictures would release a part-biopic, part-concert film entitled "Katy Perry: Part of
Dark Horse (Katy Perry song) beat and "sultry" vocals from Katy Perry. He gave the track a rating of four stars out of five. Contributor Dylan Mial of Blogcritics said the "juxtaposition" of Perry's vocals and Juicy J's rap brought "the ingredients for a perfect musical storm" and favored Perry for the "uniqueness" of the single. Keith Murphy from "Vibe" called the track "infectiously sexy", while John Walker from MTV was similarly positive about the song, though he wrote that Juicy's verse was "phoned-in". Sal Cinquemani of "Slant Magazine" likened the song to avant-garde band Art of Noise's song "Moments In Love" and called it