Record producer Calvin Harris [Photo/IC]

No. 9 Calvin Harris: $63 million

Adam Richard Wiles, known professionally as Calvin Harris, is a Scottish record producer, DJ, singer and songwriter. Harris has collaborated with numerous recording artists.

His collaboration with Rihanna We Found Love became an international success, earning Harris his first number one single on the US Billboard Hot 100 chart. Meanwhile, Harris topped Forbes' list of the world's highest-paid DJs for three consecutive years from 2013 to 2015.