The rumour mill is in overdrive this week as former prime minister Justin Trudeau was spotted dining out with pop star Katy Perry in Montreal — two nights before showing up at her concert there. It's unclear whether the encounters were friendly or romantic,

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.