Country singer Garth Brooks [Photo/IC]

No .6 Garth Brooks: $70 million

Troyal Garth Brooks is an American country singer and songwriter. His integration of rock and roll elements into the country genre has earned him immense popularity in the United States. Brooks has had multi-platinum recordings and record-breaking live performances.

According to the RIAA, he is the best-selling solo album artist in the United States with 138 million domestic units sold, ahead of Elvis Presley and second only to The Beatles in total album sales overall.