Katy Perry has left Taylor Swift far behind and has grabbed the Forbes' title for the world's highest-paid musician in 2015. The 31-year-old songstress' Prismatic World Tour helped her to pull in a staggering 135 million dollars over the past year and left her rival, the 'Bad Blood' hit-maker far behind in the race with just 70 million dollars in her bank. Swift has been given fourth slot on the Forbes list. Meanwhile Swift's boyfriend Calvin Harris stands on number 6 position with an estimated earnings of 66 million dollars.
