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Girl power!

Katy Perry attended a promotional event for Hillary Clinton's new memoir Hard Choices this past weekend, and the singer is such a big fan of the politician that she even offered to write a "theme song" for her if she decides to run for office!

"I told @hillaryclinton that I would write her a 'theme' song if she needs it" the pop star captioned a photo of herself and the former Secretary of State.

Bill Clinton's wifey already has a tune in mind, too!

"Well thats not a Hard Choice. You already did! Keep letting us hear you Roar," the 66-year-old tweeted in response to KP's offer.

What a dynamic duo these two are!