Pennywise formed in Hermosa Beach in 1988 and became one of Southern California skate punk's most durable institutions. Jim Lindberg, Fletcher Dragge, Byron McMackin, and Jason Thirsk built the band around speed, melodic aggression, and a stubborn ethic of self-reliance. The self-titled debut, Unknown Road, About Time, Full Circle, Straight Ahead, Land of the Free?, and later albums established a sound that is instantly recognizable: fast drums, thick guitar downstrokes, shout-along choruses, and lyrics about alienation, resistance, loss, and perseverance. Thirsk's death in 1996 gave the band's history a tragic center, and Full Circle in particular carries that grief inside songs that still move with relentless forward force. "Bro Hymn" became bigger than the band, functioning as a memorial, sports chant, and punk anthem at once, but Pennywise's catalog runs deeper than one song. They fit punk and melodic hardcore scope directly through style, scene, and influence. Pennywise's best material is simple by design, not by accident, turning speed and repetition into a collective release that still feels built for crowded rooms.

Pentachrome is a progressive metal band from Medellín, Colombia, formed in 2019. The band draws on themes of philosophy, history, and literature, and has released two EPs: "Tautology" (2020) and "Mentir" (2024). They operate as an independent act and are listed on Metal Archives as active.

Out of Kenosha since 2005, People Again channels the d-beat fury of crust punk through thrash metal's velocity, producing something rawboned and relentless.

Percantor is a death/thrash metal band from Bogotá, Colombia, founded in 2005. The band released their debut full-length "Ritos de Batalla" in 2020, a nine-track album delivering Spanish-language death/thrash material, followed by the single "Enemigo" in 2025. They remain an independent unsigned act.

Richmond's Pergola has been honing their brand of deathcore since 2007, fusing Virginia's hardcore-rooted aggression with cavernous death metal heaviness and wall-to-wall sonic punishment.

Salem, Oregon's Perihelion has been crafting death metal at the point of closest orbit since 2014 — precise, punishing riffwork that burns bright and leaves scorched earth.

Washington, D.C.-area progressive metal architects Periphery are widely credited with popularizing the djent movement, with guitarist Misha Mansoor's polyrhythmic, heavily processed guitar tones and the band's complex compositions redefining what modern metal could sound like. Albums like 'Periphery II' and the two-part 'Juggernaut' cycle demonstrate a band equally comfortable with crushing low-end heaviness and soaring, emotionally resonant clean passages. Their DIY origins as an internet-based project that evolved into one of prog metal's biggest acts mirror the digital transformation of the entire music industry.

Perpetual Devourer is a death metal band from Quito, Ecuador, formed in January 2025 by guitarist and vocalist Adrián Salazar alongside drummer Diego Ocampo and bassist Víctor Ordoñez. The band released their debut album Spirits of Annihilation in late 2025 through Death Forces Records, a five-track record recorded at Winners Productions in Latacunga that delivers straightforward, aggressive death metal. Signing to a dedicated death metal label in their debut year signals the band's intent to establish a serious presence in the genre.

Perventor is a one-man black metal project from Barrancabermeja, Santander, Colombia, founded in 2008. The project is signed to Masters of Kaos Productions and has built an extensive catalog spanning demos, EPs, full-lengths, splits, and compilation appearances, with releases continuing through 2024. Lyrical themes center on anti-Christianity, hate, misanthropy, war, and lust.