2000`li yıllar hard rock ve heavy metal müziğin daha da çeşitlendiği zamanlar oldu. 70`ler, 80`ler ve 90`ların klasik gruplarından Iron Maiden, Black Sabbath ve Rush milenyumun önemli bir parçası haline geldi. Diğer yandan grunge ve extreme metal büyük çıkışını sürdürdü. Nu-metal ve metalcore da bu türler arasından kendine yer edinmeye çalıştı.

İnternetin yaygınlaşması ve evrimleşmesiyle beraber müzik endüstrisinde radikal değişiklikler yaşandı. Satılan albümden çok tıklanma sayıları önemsenmeye başlandı. Sosyal medya platformlarındaki beğeni ve paylaşım rakamları bir grubun gücünü gösteren, onu popüler yapan etkenlerden biri oldu.

Loudwire ekibinin hazırladığı 21. yüzyılın en iyi hard rock ve metal albümleri listesi şöyle:

100. Wolfmother – Wolfmother

99. Overkill – Ironbound

98. Chevelle – Wonder What`s Next

97. Seether – Finding Beauty in Negative Spaces

96. Dimmy Borgir – Death Cult Armageddon

95. Converge – Axe to Fall

94. HIM – Love Metal

93. Halestorm – The Strange Case Of…

92. Machine Head – The Blackening

91. Breaking Benjamin – Phobia

90. Immortal – Sons of Northern Darkness

89. Deftones – Koi No Yokan

88. Carcass – Surgical Steel

87. The Used – The Used

86. Pearl Jam – Backspacer

85. Baroness – Yellow & Green

84. Avenged Sevenfold – Nightmare

83. Sparta – Threes

82. Poison the Wall – You Come Before You

81. Cynic – Traced in Air

80. Foo Fighters – Wasting Light

79. Disturbed – Ten Thousand Fist

78. Behemoth – Demigod

77. Puscifer – Conditions of My Parole

76. Shinedown – The Sound of Madness

75. Anthrax – Worship Music

74. Nine Inch Nails – With Teeth

73. High on Fire – Blessed Black Wings

72. Woods of Ypres – Woods 5: Grey Skies & Electric Light

71. Rise Against – The Sufferer and the Witness

70. Linkin Park – Meteora

69. Black Sabbath – 13

68. Shining – V: Halmstad

67. Rush – Clockwork Angels

66. Napalm Death – Utilitarian

65. Isis – Oceanic

64. Baroness – Blue Record

63. Amon Amarth – With Oden on Our Side

62. Audioslave – Audioslave

61. Municipal Waste – The Art of Partying

60. Bad Religion – The Process of Belief

59. Stone Sour – House of Gold & Bones, Part 1

58. Mastodon – The Hunter

57. The Mars Volta – De-Loused in the Comatorium

56. The Dillinger Escape Plan – Ire Works

55. Ghost – Infestissumam

54. Slayer – God Hates Us All

53. Evanescence – Fallen

52. Pantera – Reinventing the Steel

51. Pig Destroyer – Terrifyer

50. Celtic Frost – Monotheist

49. Bring Me the Horizon – Sempiternal

48. Iron Maiden – The Book of Souls

47. Deftones – Diamond Eyes

46. Incubus – Morning View

45. Avenged Sevenfold – City of Evil

44. Killswitch Engage – The End of Heartache

43. Septicflesh – The Great Mass

42. Agalloch – The Mantle

41. Meshuggah – obZen

40. My Chemical Romance – The Black Parade

39. Slipknot – Vol. 3: The Subliminal Verses

38. Queens of the Stone Age – …Like Clockwork

37. Red Hot Chili Peppers – Stadium Arcadium

36. Alice In Chains – The Devil Put Dinosaurs Here

35. Necrophagist – Epitaph

34. Rammstein – Mutter

33. Cannibal Corpse – Kill

32. Marilyn Manson – Holy Wood (In the Shadows of the Valley of Death)

31. Lamb of God – Ashes of the Wake

30. System of a Down – Mezmerize

29. Mastodon – Crack The Skye

28. Tool – 10.000 Days

27. Porcupine Tree – Fear of a Blank Planet

26. Gorguts – Colored Sands

25. At the Drive-In – Relationship of Command

24. AFI – Sing the Sorrow

23. Killswitch Engage – Alive or Just Breathing

22. Ghost – Opus Eponymous

21. Between the Buried and Me – The Parallax II Future Sequence

20. Gojira – From Mars to Sirius

19. Children of Bodom – Follow the Reaper

18. Red Hot Chili Peppers – By the Way

17. Behemoth – The Satanist

16. Queens of the Stone Age – Songs for the Deaf

15. A Perfect Circle – Mer de Noms

14. Opeth – Blackwater Park

13. Mastodon – Blood Mountain

12. Disturbed – The Sickness

11. Converge – Jane Doe

10. Gren Day – American Idiot

9. Deftones – White Pony

8. Mastodon – Leviathan

7. Between the Buried and Me – Colors

6. Slipknot – Iowa

5. Iron Maiden – Brave New World

4. Linkin Park – Hybrid Theory

3. Opeth – Ghost Reveries

2. System of a Down – Toxicity

1. Tool – Lateralus