Justin Trudeau was caught having the time of his life at a Katy Perry concert, just days after he and the pop star sent the rumor mill into overdrive when they were spotted enjoying a cozy dinner and drinks together at a restaurant in Canada.

Justin Trudeau added fuel to Katy Perry romance rumors on Wednesday when he was spotted at her Lifetimes Tour in Canada. The sighting comes just days after the former Canadian Prime Minister, 53, and the "Teenage Dream" singer, 40, were photographed walking in a park in Montreal on Monday, TMZ reported.