Katy Perry: Part of Me is a concert/documentary hybrid in the same vein as Justin Bieber: Never Say Never, which was a strong hit last year with $73 million. The 3D concert movie genre is hit-or-miss, though: while Justin Bieber, Michael Jackson ($72.1 million) and Hannah Montana ($65.3 million) were all hits, there are also notorious duds from the Jonas Brothers ($19.2 million) and the cast of Glee ($11.9 million). The inspirational nature of the concert/doc seems to align well with Perry's image, so it should avoid the same fate as Jonas and Glee, though it has virtually no chance of matching the Biebs.