Katy Perry was living the single life over the weekend at Coachella, where she was spotted getting cozy with her longtime pal Diplo. The pair both attended the Jeremy Scott-Adidas party on Saturday night, where a eyewitness says the two were “definitely flirting” and acting like more than just friends.However, another source close to Katy insists that she and Diplo are simply “good friends” and says this isn’t a blossoming romance.