Katy Perry has already teamed up with Macy's for her upcoming appearance at the department store's annual NBC special, Macy's 4th of July Fireworks Spectacular, which will air Wednesday.  But this weekend, Macy's shoppers will have the added chance to get free tickets to Katy's new movie, Part of Me.

On Saturday, at more than 650 Macy's locations nationwide, fans who spend $50 or more in Macy's MSTYLELAB young men's and young women's departments will receive one free ticket to see the 3D movie extravaganza, which opens July  5.  The tickets expire July 13, or when Part of Me is no longer in theaters, whichever comes first, so you'll want to check it out right away.

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