Katy Perry gave boyfriend Justin Trudeau an adorable shoutout as he supported her at a music festival in Malta ❤️ "I love you baby!" the popstar, 41, yelled to the former Canadian Prime Minister as he waved from the crowd 🥰 These two are so smitten! 📽️ : sidestreetmalta #KatyPerry #JustinTrudeau #KatyandJustin