Justin Trudeau is ready to "Roar"! The former Canadian Prime Minister was spotted bopping and singing along at Katy Perry's recent Lifetimes Tour stop in Montreal. Trudeau stood front and center at the July 30 show,

Justin Trudeau`s participation in Katy Perry`s Lifetimes Tour event in Montreal on July 30 has generated questions about their friendship. The former Canadian Prime Minister`s appearance at the concert comes just days after he was caught dining with the Roar singer at Montreal`s Le Violon restaurant,

Justin Trudeau attended Katy Perry’s Lifetimes Tour in Montreal, Canada on July 30. Trudeau also brought his daughter, Ella-Grace, to the concert.