The politician and the “Teenage Dream” songstress stepped out for a stroll around Mount Royal Park before heading to dinner ...

Katy Perry and Justin Trudeau went for a stroll at Montreal's Mount Royal Park before grabbing dinner on Monday, July 28.

Celebrity gossip site TMZ says singer Katy Perry and former Canadian Prime Minister Justin Trudeau walked through a Montreal park before a "dinner date" Monday.

Katy Perry is saying "bon appétit" to Justin Trudeau ... as the pair was seen chowing down at a swanky restaurant in Montreal.

Justin Trudeau and pop star Katy Perry have sent tongues wagging after the two dropped by a Montreal restaurant for a meal ...