Here's the Top 10, along with their age, and estimated current net worth:
1. Dolly Parton, 73, $500 million
2. Shania Twain, 54, $400 million
3. Toby Keith, 58, $365 million
4. Garth Brooks, 57, $330 million
5. George Strait, 67, $300 million
6. Kenny Rogers, 81, $250 million
7. Kenny Chesney, 51, $190 million
8. Reba McEntire, 64, $95 million.
9. Alan Jackson, 60, $95 million
10. Brad Paisley, 46, $95 million
Source: TheRichest.com