India, July 31 -- Justin Trudeau's appearance at Katy Perry's Lifetimes Tour concert on July 30 in Montreal has sparked speculation about their relationship. The former Canadian Prime Minister's visit to the gig comes just days after he was spotted enjoying a dinner with the Roar hitmaker at Montreal's Le Violon restaurant, TMZ reported.

Videos and images from the city's Bell Centre show Justin Trudeau enjoying himself at the Lifetimes Tour. The 53-year-old, dressed in a black T-shirt, was spotted singing along to Perry's hit tracks like Roar and Firework. According to Page Six, Trudeau's 16-year-old daughter, Ella-Grace, was also present at the concert.

Social media users were quick to react to the clips. "justin trudeau knowing the wo...