This list is just based of last year, not all time (fyi)
1. 50 Cent - $150 million
2. Jay-Z - $82 million
3. P Diddy - $35 million
4. Kanye West - $30 million
5. Timbaland - $22 million
6. Pharrell Williams - $20 million
7. Swizz Beatz - $17 million
8. Snoop Dogg - $16 million
9. Dr. Dre - $15 million
10. Ludacris - $14 million
11. T.I. - $13 million
12. Lil Wayne - $13 million
13. Eminem - $12 million
14. Common - $12 million
15. Akon - $12 million
16. Jermaine Dupri - $11 million
17. Lil Jon - $11 million
18. OutKast - $10 million
19. Chamillionaire - $10 million
20. The Game - $10 million