It Sounds Like Katy Perry And Justin Trudeau’s Relationship Might Be Getting Serious  BuzzFeedJustin Trudeau’s ex-wife Sophie Grégoire breaks silence on his romance with Katy Perry  CNNSophie Grégoire Trudeau Breaks Silence on Justin Trudeau, Katy Perry Romance  E! NewsKaty Perry and Justin Trudeau Planning Big Step in Their Relationship  The Daily BeastThere’s New Reports On Katy Perry And Justin Trudeau’s Relationship, And You Might Want To Read This One  Yahoo