Don't mess with Katy Perry.
Check out this smokin' hot trailer for her upcoming "Part Of Me" music video.
Decked out in army gear with an almost deadly glare, it looks like Katy is going to show us all who's in charge of her heart.
Katy Perry's "Part Of Me" music video will be unveiled on March 21. Teenage Dream: The Complete Confection will be available on March 27th.
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