Katy Perry's rumored relationship with former Canadian Prime Minister Justin Trudeau puts her on the list of other celebrities who have dated famous politicians.

Former Canadian Prime Minister Justin Trudeau and Katy Perry had dinner together in Montreal this week.

Justin Trudeau was spotted at Katy Perry's Lifetimes Tour at Montreal's Bell Centre on Wednesday, July 30. Trudeau, 53, was seen in the crowd wearing a casual t-shirt as he smiled while watching the singer's performance.