13) Dave Grohl (Net worth: $260 million)
Former Nirvana drummer Dave Grohl is a popular American rock musician, who has released seven studio albums with his rock band Foo Fighters. As of May 2014, the band have sold over 11.1 million albums.
12) Roger Waters (Net worth: $270 million)
English musician, singer, composer and songwriter Roger Waters was the co-founder and lead singer of the popular British rock band Pink Floyd. His solo career achieved international success. His tour The Wall Live from 2010 to 2013 became the highest-grossing of all time by a solo artist; generated box office receipts of $459 million.