Out of Wellsville, Ohio, Haxxan have channeled raw, atmospheric black metal into their work since 2017, building on a tradition of American underground black metal that prizes sincerity and darkness over production values. Their Bandcamp presence signals a deliberately lo-fi, DIY aesthetic.

Chicago's Hay Perro occupy the scrappy intersection of heavy metal and punk rock, a loose and energetic hybrid that's been a fixture of the city's underground scene since 2011. Their bilingual name hints at a community and identity outside the genre's standard demographic.

Hoboken's Hayaino Daisuki translates roughly as 'I love speed' — and they mean it, delivering blistering blasts of thrash-infused grindcore that rarely slow long enough to catch a breath. Since 2008 they've been one of New Jersey's most furiously paced metal exports.

Haywire is a Boston hardcore project centered on Austin Sparkman, surfacing in 2023 with a sound that connects classic Boston hardcore aggression to rough-edged punk rock catchiness. Conditioned for Demolition introduced short, blunt songs built on gang vocals, hard downstrokes, simple but forceful riffs, and a street-punk sense of forward motion. The band's identity quickly expanded beyond pure hardcore with material like For Better Or For Worse, where melodic hooks, sing-along choruses, and even ballad-like turns sit beside mosh-ready tracks. That contrast is part of the appeal: Haywire can sound primitive and confrontational, but the songs often reveal a strong ear for compact pop structure under the noise. The Boston context matters musically because the band draws from a lineage of no-frills regional hardcore, yet the writing is more flexible than scene shorthand suggests. Haywire's short history has been marked by rapid touring, high-energy live response, and a growing catalog that treats hardcore as a base for rowdy, emotionally direct punk songs with enough melody to stick after the pit clears.

Haywire 617 are a Boston hardcore band created and fronted by Austin Sparkman, using the 617 area code to mark the project's identity in a crowded field of bands with the same name. Their music is blunt, regional, and built for immediate crowd response, mixing Boston hardcore toughness with street-punk chant, skinhead hardcore energy, and big, simple hooks. Conditioned For Demolition introduced the band's personality through songs such as "Haywire," "Like a Train," "Love Song," "Boston Boot Boys," and "Poser Disposer," all driven by hard riffs, gang vocals, and a refusal to soften the local pride at the center of the sound. For Better Or For Worse and Shirts Vs. Skins expanded the catalog while keeping the writing lean and direct. Haywire 617 have also become a visible live force, turning short songs into full-room participation through stage dives, shouted choruses, and a sense that the band exists as much for the crowd as for the recording. Their sound is not complicated, but it is effective: Boston hardcore as identity, release, and confrontation.

Columbia, Missouri's Hazard grind groove and thrash together in the manner of mid-90s Pantera and Sepultura — all low, locked-in riffs and head-snapping tempo shifts. Since 2015 they've been bringing that meaty, swinging heaviness to the Missouri scene.

Los Angeles's Hazard blend traditional heavy metal's melodic sensibility with thrash's attack and speed, a familiar formula executed with the conviction that only a city with LA's deep metal heritage can inspire. They've been building their catalog since 2015.

Minneapolis stoner/doom outfit Haze Gazer emerged in 2021 with a sound that splits the difference between desert-baked fuzz rock and proper doom metal weight, its slow tempos and thick atmosphere shaped by the long, dark Minnesota winters as much as any California sun. The result is northern heavy psych at its most enveloping.

Baltimore's Haze Mage conjure stoner/doom with a genuine sorcerer's patience — unhurried riffs stack over glacial rhythms while the vocals drift through the fog. Active since 2017, they're part of a vibrant Maryland heavy scene that has long punched above its weight.