Who is Sophie Grégoire? Trudeau’s ex-wife reacts to Katy Perry yacht romance  Gulf NewsKaty Perry and Justin Trudeau’s romance includes secret dates, FaceTime calls and major PDA  Fox NewsKaty Perry and Justin Trudeau Kiss on PDA-Filled Yacht Outing in California  People.comBefore Justin Trudeau and Katy Perry, There Was Pierre Trudeau and Barbra Streisand  Vanity FairIs Katy Perry Dating Justin Trudeau? What We Know About Rumored Relationship  Forbes