Joe La Mouk is a one-man punk and metalcore project from Beausoleil, France, active since 2007 and self-described as a musical outlet where the only rules are nonsense and humor. Their releases including Au Top Du Stress (2023) blend punk, garage, metal, and hardcore with absurdist lyrics about topics ranging from pizza ovens to French astronaut Thomas Pesquet.

Joe Mizzi is a Maltese-born singer who relocated to Germany in 1987 and joined the band High n Dry in Cologne, opening for Iron Maiden, The Cross, and performing at the Loreley Festival alongside Meatloaf, Magnum, and Marillion. His solo album Angels Fall (2011) showcases his powerful vocal range honed through decades in the European hard rock and metal scene.

John D. Prasec is a singer, composer, and songwriter born in Trieste, Italy, now based in London, creating hard rock and heavy metal. His work supports what he calls the real voice of hard n heavy, channeling his Italian-British background into passionate, powerful vocal performances.

John Steel is a heavy metal band from Bulgaria that channels classic metal energy through a modern Eastern European lens. The project delivers hard-hitting riffs and powerful performances rooted in the traditions of the Bulgarian metal underground.

Johnny Riffs is a Sweden-based metal musician who creates backing tracks spanning hard rock, metal, thrash, death, power ballads, stoner rock, and glam. His sixteen-album catalogue serves as a resource for guitarists looking to jam and shred solos, with new tracks added monthly.

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.