It turns out Justin Trudeau and Katy Perry had a full itinerary in Montreal that involved more than just dinner. According to TMZ, Trudeau and Perry were seen strolling through Mount Royal Park an hour and a half before their delicious meal. justin trudeau knowing the words to katy perry’s songs meanwhile orlando bloom wanted her to retire… THE UPGRADE pic.twitter.com/wQtdg6ckHR — . Just like the words "Katy Perry" and "astronaut," the world really didn't foresee "Katy Perry" and "Former Prime Minister Justin Trudeau" being uttered in a sentence together. "Justin Trudeau & Katy Perry spotted in Moncton!"