Singer's Vocal Ranges

1. Elvis Presley - 3 octaves
2. Michael Jackson - 4 octaves
3. Madonna - 3 octaves
4. Freddie Mercury - 5 octaves
5. Elton John - 3 octaves
6. Mariah Carey - 5 octaves
7. Celine Dion - 3 octaves
8. Whitney Houston - 3.2 octaves
9. Cher - 3 octaves
10. Janet Jackson - 3 octaves
11. Britney Spears - 4 octaves
12. Jennifer Lopez - 2 octaves
13. Barbra Streisand - 3 octaves
14. Beyoncé - 4 octaves
15. Christina Aguilera - 4 octaves
16. Aretha Franklin - 3.5 octaves
17. Donna Summer - 3 octaves
18. Diana Ross - 3 octaves
19. Tina Turner - 3 octaves
20. Rihanna - 3 octaves
21. Shakira - 3 octaves
22. Charice - 3 octaves
23. Justin Bieber - 2 octaves
24. Georgia Brown - 8 octaves (Guinness World Record Holder)
25. Adam Lopez - 8 octaves (Guinness World Record Holder)