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
Walking on Air (Katy Perry song) it would "make you long for C+C Music Factory". The song was also described as evoking the music of Swedish singer Robyn, an artist of whom Perry is a fan. Sal Cinquemani from Slant Magazine was very positive of the song: he described it as "surprisingly soulful, throwback" to 1990s deep house, although he noted that Åhlund decided to give Perry a different sound from the Euro electro-pop he had produced for "Body Talk" (2010). Greg Kot from "Chicago Tribune" deemed the single a "catchy pop tune", while Randall Roberts from the "Los Angeles Times" wrote that the song's "euphoria"