Joni Fred is a Finnish guitarist from Tampere who has released six solo albums of rock and metal melodic guitar instrumentals. Originally from Vaasa, his work showcases technical prowess across diverse heavy styles, from hard rock to progressive metal.

Jonny Vinter and the Gloominess is a Swedish rock and metal band from Nykoping, rocking since 1989 in a modern rock/metal/gothic rock-metal fusion. Their extensive discography explores the dark and light inside us through albums including It's Alive, All is Doom & Black, and The Dark Side of a Motel.

Jorn is a Norwegian heavy metal vocalist known for his powerful, wide-ranging voice and prolific career across multiple projects. His work spans classic heavy metal and hard rock, establishing him as one of Scandinavia's most recognized metal vocalists.

Jorum is a dark metal and hard rock band from Gothenburg, Sweden, established in 2023 and expressing darkness through heavy atmospheric compositions. Their debut album Vortex Of Madness (2025) features ten tracks spanning heavy metal, black metal, doom, and gothic rock, available on both digital and vinyl formats.

Jose Moreno is a Spanish metal musician from Elche who has been writing songs since 2002. His work spans heavy and experimental territory with a strong melodic sensibility, contributing to the diverse landscape of Spanish heavy music.

Jose Rubio is a Spanish metal musician whose compositions blend heavy guitar work with electronic and experimental elements. His approach to metal incorporates diverse sonic textures, creating a unique fusion within the Spanish underground music scene.

Josh H is a metal and post-punk musician from Spain whose recordings span multiple heavy genres with an eclectic, genre-bending approach. His work bridges the gap between aggressive metal and dark post-punk atmospherics, drawing on influences from both sides of the heavy music spectrum.

Josh Keech is a guitarist, musician, and YouTuber from Bedford, UK, whose debut solo project Warrior In The Clouds showcases his diverse metal influences across two parts. His instrumental guitar work spans multiple heavy styles, reflecting his background as a content creator and performer.

Joy Machine is a heavy metal band from Poland that blends melodic hooks with aggressive metal power. Their approach to the genre combines Polish metal intensity with accessible songwriting, creating a dynamic and engaging heavy sound.