Here's the Top 20 list of Highest Grossing Female Musicians according to Forbes. 
1. Madonna - $72 million
2. Barbra Streisand - $60 million
3. Celine Dion - $45 million
4. Shakira - $38 million
5. Beyoncé - $27 million
6. Gwen Stefani - $26 million
7. Christina Aguilera - $20 million
8. Faith Hill - $19 million
9. Dixie Chicks - $18 million
10. Mariah Carey - $13 million
Britney Spears is nowhere to be found in the Top 10.
 Britney in the cover of Blender Magazine. Britney's face in another woman's body.
Britney in the cover of Blender Magazine. Britney's face in another woman's body.
11. Hilary Duff - $12 million
12. Avril Lavigne - $12 million
13. Martina McBride - $12 million
14. Britney Spears - $8 million
15. Carrie Underwood - $7 million
16. Nelly Furtado - $7 million
17. Fergie - $6 million
18. Jennifer Lopez - $6 million
19. Sheryl Crow - $6 million
20. Norah Jones - $5.5 million
2. Barbra Streisand - $60 million
3. Celine Dion - $45 million
4. Shakira - $38 million
5. Beyoncé - $27 million
6. Gwen Stefani - $26 million
7. Christina Aguilera - $20 million
8. Faith Hill - $19 million
9. Dixie Chicks - $18 million
10. Mariah Carey - $13 million
Britney Spears is nowhere to be found in the Top 10.
 Britney in the cover of Blender Magazine. Britney's face in another woman's body.
Britney in the cover of Blender Magazine. Britney's face in another woman's body.11. Hilary Duff - $12 million
12. Avril Lavigne - $12 million
13. Martina McBride - $12 million
14. Britney Spears - $8 million
15. Carrie Underwood - $7 million
16. Nelly Furtado - $7 million
17. Fergie - $6 million
18. Jennifer Lopez - $6 million
19. Sheryl Crow - $6 million
20. Norah Jones - $5.5 million
