Greatest Bands Of All Time

Hey. I was searching for the greatest bands of all time and came across this list :
1. Metallica
2. Iron Maiden
3. Black Sabbath
4. Megadeth
5. Avenged Sevenfold*
6. Judas Priest
7. Pantera*
8. Slayer*
9. System Of A Down
10. Slipknot*
11. Bullet For My Valentine
12. Dream Theater
13. Disturbed*
14. Lamb Of God
15. Linkin Park
16. Ozzy Osbourne
17. Tool*
18. Motörhead*
19. Anthrax
20. Dio*
21. AC/DC
22. Nirvana
23. Rammstein
24. All That Remains
25. As I Lay Dying*
26. Trivium*
27. Death*
28. Marilyn Manson
29. Man Of War
30. Hammer Fall*
31. In Flames*
32. Opeth*
33. Guns N Roses
34. Children of Bodom
35. Led Zeppelin
36. Accept*
37. Anti Graham*
38. Cradle Of Filth
39. Five Finger Death Punch*
40. Iced Earth*

***Alright here's the confession "Never Ever Heard Of These Bands"