H-blockx
                 Hacavitz
                 Hackneyed
                 Hacride
                 Hades
                 Hail!Hornet
                 Halford
                 Halo Grey
                 Hammerfall
                 Hand Made God
                 Hand To Hand
                 Handful of Hate
                 Hangman
                 Hardcore Superstar
                 Hardingrock
                 Harlots
                 Haste
                 Haste The Day
                 Hatchet
                 Hate
                 Hate Eternal
                 Hatebreed
                 Hatesphere
                 Hatevol
                 Haunted, The
                 Have Heart
                 HavocHate
                 Hawthorne Heights
                 Hayagriva
                 Hazmat
                 He Is Legend
                 He Who Corrupts
                 Head
                 Head Of The Snake
                 Headstrong
                 Hearse
                 Heartfelt Discord
                 Heaven and Hell
                 Heaven Shall Burn
                 Heavils, The
                 Hecate Enthroned
                 Held Under
                 Hell Dormant
                 Hell Within
                 Hell-Born
                 Hellacopters, The
                 Hellfueled
                 Hellhammer
                 Helloween
                 Helltrain
                 HellYeah
                 Helmet
                 Hemlock
                 Heol Telwen
                 Her Candane
                 Her Nightmare
                 Heresy
                 Heretic Angels
                 Herod
                 Herriot
                 Herzog
                 Hevein
                 HeWhoCorrupts
                 Hexen
                 Hidden Hand, The
                 Hidden, the
                 High On Fire
                 HIM
                 Himsa
                 Hinder
                 HOD
                 Holding On
                 Hollow
                 Hollow Corp.
                 Hollywood Undead
                 Holy Dragons
                 Holy Moses
                 Holymarsh
                 Hoobastank
                 Hoods
                 Hope Conspiracy, The
                 Hopesfall
                 Horna
                 Horse The Band
                 Hostility
                 Hot Cross
                 Hot Water Music
                 Hour of Penance
                 Houwitser
                 How It Ends
                 HTD
                 Human Abstract, The
                 Human Mastication
                 Human Waste
                 Humonic
                 Hurt Process, The
                 Hurtlocker
                 Hydrogyn
                 Hymn, The
                 Hymns of Hades
                 Hypocrisy
                 Hypofixx
                 Hyponic
                 Hyubris