Katy Perry’s Copyright Case May Sound Familiar to These Stars. Copyrights and Copyright Violations, Music, Decisions and Verdicts, Perry, Katy, Flame (1981- ), Harrison, George, Orbison, Roy, Porter, Cole, Gaye, Marvin, Sheeran, Ed, Thicke, Robin, Williams, Pharrell, Dark Horse (Song), Blurred Lines (Song)