Katy Perry made music history as the first female artist to produce five Number 1 songs off a single album with 2010’s Teenage Dream. It’s a rare achievement that has only been accomplished by one other artist before now: the King of Pop himself, Michael Jackson.

Katy Perry: Part of Me, playing in 3-D, followed the singer as she headed out on her year-long, sold-out California Dreams Tour. While we do get to watch her perform hits like Firework and E.T. onstage, the documentary is far from being a typical concert movie. The audience get a rare peek(窥视) at what goes on backstage and the pressures of life on the road. We also get a look inside the singer’s humble(卑微的) beginnings. Through old home videos and interviews with her family and friends, we learn the depth of Perry’s passion for music starting from a very young age. It’s clear that she’s a natural-born performer. But success didn’t come overnight. It didn’t come easily at all.

Before Perry became famous, she was a struggling, little-known artist playing at small clubs in Los Angeles, California. When she finally did get a break, it didn’t last long. She was bounced around from record label(唱片公司) to record label. It seemed everyone wanted to remake her into someone she wasn’t — the next Avril Lavigne or the next Kelly Clarkson. But she wasn’t those artists. And she never gave in to those demands for her to change. It’s an inspiring tale of what can happen when you believe, persevere and stay true to yourself.

The bottom line is, if you weren’t a Katy Perry fan before, you will be by the time the film ends. And if you are already a fan, well, you may find yourself loving her even more.