See Katy Perry Before She Was Famous in New ‘Part of Me’ Clip (VIDEO)

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Katy: 2012 Billboards
Katy Perry brings her grandma to the awards show!
Celebuzz has a first look at Katy Perry‘s 3-D documentary-concert film Part of Me.

The “Teenage Dream” songstress is prepping for her first major motion picture, which provides a glimpse of the star’s pre-life fame.

Check it out in the video, above.

“Since I was little, my dream has always been to be on stage,” 27-year-old Katy said, in the clip.

Now, the ex-wife of Russell Brand is a global superstar — and is using her fame for a good cause: The Grammy Award winning star is performing for the troops at Fleet Week, starting Tuesday May 22.

Part of Me hits theaters this summer, July 5. In the meantime, Perry released a lyric video for her new single, “Wide Awake” — which you can watch below: