Justin Trudeau was lit up like a firework at Katy Perry’s Montreal concert Wednesday night. Fresh off his dinner date with the “Dark Horse” pop star, the former Canadian prime minister, accompanied by his teenage daughter, was spotted beaming and singing along to Perry’s greatest hits at the singer’s Bell Centre stop on her Lifetimes tour.

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.

Are Katy and Justin living out their teenage dream? Find out what's going on between the former Canadian prime minster and the global pop icon here.