California girl Katy Perry was “definitely on a date” with former Canadian Prime Minister Justin Trudeau earlier this week — but a source exclusively tells Us Weekly it’s very new. “It was casual,” the insider tells Us of Perry, 40, and Trudeau’s Monday, July 28, dinner date in Montreal, Canada. “They had been in touch for the last month and have a few mutuals in the music industry.” While the Grammy nominee “doesn’t have a lot of extra time right now” she was able to work out a break in her worldwide Lifetimes Tour schedule and “agreed to see” Trudeau, 53, the insider explains. “This is all n...

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