 | | Formed by Tool vocalist Maynard James Keenan and former Tool guitar tech Billy Howerdel, A Perfect Circle is an extension of the alt-metal-fused-with-art rock style popularized by Tool in the early to mid-'90s. |
 | | Tool's greatest breakthrough was to meld dark underground metal with the ambition of art rock. Although Metallica wrote their multi-sectioned, layered songs as if they were composers, they kept their musical attack ferociously at street level. |
 | | Nine Inch Nails were the most popular industrial group ever and were largely responsible for bringing the music to a mass audience. |
 | | Deftones were one of the first groups to alternate heavy riffs and screamed vocals with more ethereal music and hushed singing -- spawning a fair amount of imitators in their wake. |
 | | Primus is all about Les Claypool; there isn't a moment on any of their records where his bass isn't the main focal point of the music, with his vocals acting as a bizarre side-show. |
 | | In many ways, Alice in Chains was the definitive heavy metal band of the early '90s. Drawing equally from the heavy riffing of post-Van Halen metal and the gloomy strains of post-punk, the band developed a bleak, nihilistic sound that balanced grinding hard rock with subtly textured acoustic numbers. |
 | | Love him or hate him, the self-proclaimed "Antichrist Superstar" -- Marilyn Manson -- was indisputably among the most notorious and controversial entertainers of the 1990s. |
 | | Rage Against the Machine earned acclaim from disenfranchised fans (and not insignificant derision from critics) for their bombastic, fiercely polemical music, which brewed sloganeering leftist rants against corporate America, cultural imperialism, and government oppression into a Molotov cocktail of punk, hip-hop, and thrash. |
 | | For metalheads who thought bands like W.A.S.P. and Mötley Crüe just weren't menacing or heavy enough, White Zombie was the perfect antidote for a period of time during the mid- to late '90s, as they fused B-horror movie visuals and subject matter with heavy music and growled vocals. |
 | | Like many late-'90s metal bands, System of a Down struck a balance between '80s underground thrash metal and metallic early-'90s alternative rockers like Jane's Addiction. |
 | | Vocalist Christopher Hall and keyboardist Walter Flakus met in 1985 and formed the industrial rock band Stabbing Westward in Chicago. |
 | | Richard Patrick (vocals, guitars, bass, programming, drums) and Brian Liesegang (programming, guitars, keyboards, drums) both experimented with electronics early in their careers. |
 | | New York goth metal quartet Type O Negative were led by vocalist/bassist/songwriter Peter Steele and featured guitarist Ken Hickey, keyboardist Josh Silver, and drummer Johnny Kelly. |
 | | Spawned by the fertile L.A. alt-metal scene, Orgy adds catchy melodic hooks to the familiar mix of crushingly loud riffs and electronic-tinged production. |
 | | Clutch combined elements of funk, Led Zeppelin, and metal with vocals inspired by Faith No More. Formed in 1991 in Germantown, MD, the group included Neil Fallon (vocals), Tim Sult (guitar), Dan Maines (bass), and Jean-Paul Gaster (drums). |
 | | Formed from the ashes of stoner rock icons Kyuss, Queens of the Stone Age reunited the group's singer/guitarist Josh Homme, drummer Alfredo Hernandez, and bassist Nick Oliveri along with new guitarist/keyboardist Dave Catching. |
 | | The longtime frontman for metal superstars White Zombie, Rob Zombie was born Robert Cummings on January 12, 1966, in Haverhill, Massachusetts, forming the group soon after moving to New York City circa 1985. |
 | | Korn's cathartic alternative metal sound positioned the group among the most popular and provocative to emerge during the post-grunge era. |
 | | Until Nine Inch Nails crossed over to the mainstream, Ministry did more than any other band to popularize industrial dance music, injecting large doses of punky, over-the-top aggression and roaring heavy metal guitar riffs that helped their music find favor with metal and alternative audiences outside of industrial's cult fan base. |
 | | Soundgarden made a place for heavy metal in alternative rock. Their fellow Seattle rockers Green River may have spearheaded the grunge sound, but they relied on noise rock in the vein of the Stooges. |
 | | When Zack de la Rocha left Rage Against the Machine in October 2000, the band's future was put into question. |
 | | Like many influential bands, Helmet were born out of an unusual set of influences. Oregon-born guitarist and founder Page Hamilton had actually moved to New York City to study jazz, but found inspiration in the late '80s through post-punk acts Sonic Youth, Killing Joke, and Big Black, and envisioned a group that combined then-unusual tunings (particularly dropped D) with uneven and jazz-like time signatures and harmonies. |
 | | With their fusion of heavy metal, funk, hip-hop, and progressive rock, Faith No More has earned a substantial cult following. |
 | | During his time in the seminal hardcore band the Misfits, vocalist Glenn Danzig displayed a fascination with outlandish, graphic, often gory imagery; in forming the more heavy metal-oriented band Samhain, Danzig's lyrics delved into typical metal subject matter, but took the concept of darkness to an extreme. |
 | | The preeminent metal band of the early to mid-'90s, Pantera put to rest any and all remnants of the '80s metal scene, almost single-handedly demolishing any notion that hair metal, speed metal, power metal, et al. |
 | | Jerry Cantrell first came to prominence as a member of Alice in Chains, one of the prototypical Seattle grunge bands. |
 | | Slipknot's mix of grinding, post-Korn alternative metal, Marilyn Manson-esque neo-shock rock, and rap-metal helped make them one of the most popular bands in the so-called nu-metal explosion of the late '90s. |
 | | Rammstein were formed in 1993 by an assembly of factory-weary proletarians raised in East Germany. They took their name (adding an "m") from the location of a German tragedy where 80 people were hurt and killed as the result of a crash during an American Air Force flight show. |
 | | Retro-rock visionaries Monster Magnet spent much of the 1990s struggling against the prejudices imposed upon image and sound by alternative rock fashion nazis. |
 | | After falling out with mentor Ozzy Osbourne following the recording sessions for 1995's Ozzmosis, guitarist Zakk Wylde struck out on his own with his first solo album, Book of Shadows, in 1996. |
 | | Similar in style and approach to such industrial metal outfits as Ministry and KMFDM, Gravity Kills followed in their predecessor's path but ultimately failed to cause as big a splash. |
 | | One of the first punk-metal fusion bands, Corrosion of Conformity (C.O.C. for short) were formed in North Carolina by guitarist Woody Weatherman during the early '80s. |
 | | Static-X's roots trace to the Midwest, where vocalist/guitarist Wayne Static grew up in Michigan and drummer Ken Jay in Illinois. |
 | | Quite a few side projects containing members of renowned Seattle-based rock bands appeared through the '90s. |
 | | Helmed by vocalist Spider (aka Michael Cummings, also know as Spider One or MC Spider, the younger brother of Rob Zombie), the Boston-based underground electro-metal band Powerman 5000 earned a popular cult following along the East Coast with the release of their 1994 indie debut EP, True Force, and 1995's LP The Blood Splat Rating System, the latter of which appeared on Conscience Records. |
 | | Inspired by the lurching riffs of Helmet and the soft/loud vocal dynamics of Tool, the Chicago-based trio Chevelle formed in 1995 with an aggressive, heavy sound. |
 | | Upon his exit from Sepultura in late 1996, singer/guitarist/songwriter Max Cavalera almost automatically set out to form his next musical endeavor, the ultra-heavy Soulfly. |
 | | Heavy metal quartet Mudvayne formed in Peoria, IL, in 1996, its members adopting the unusual pseudonyms sPaG (M. |
 | | Schoolgirls Mercedes Lander (drums) and Fallon Bowman (guitar) met in gym class and said, "Let's play together!" And thus, Kittie was born. |
 | | Coal Chamber broke out of the Los Angeles alternative metal scene in 1997 with a sound often compared to Korn, although both bands formed around the same time and are quality representations of the scene's overall sound -- the heavy, detuned guitars of the murkiest Black Sabbath, grungy, noisy textures reminiscent of White Zombie or Tool, the white-knuckle intensity of Pantera and hardcore punk, and perhaps a few hip-hop-influenced beats á la Biohazard. |
 | | Temple of the Dog was a one-album project conceived in 1990. The purpose of Temple of the Dog was to pay tribute to the late Andrew Wood, the lead singer of Mother Love Bone, who died of a heroin overdose in 1990. |
 | | System of a Down founder Serj Tankian was born on August 21, 1967, in Beirut, Lebanon. He and his family immigrated to Los Angeles in 1975. |
 | | Atlanta-based sludge/stoner/alternative metal outfit Mastodon formed in 1999 around the talents of guitarist Bill Kelliher, drummer Bränn Dailor, bassist/vocalist Troy Sanders, and guitarist/vocalist Brent Hinds. |
 | | The Atlanta-based quintet Sevendust became one of the rising acts in late-'90s heavy metal with an aggressive blend of bottom-heavy riffs and soulful, accessible melodies. |
 | | Down is an all-star heavy metal side project whose original lineup consisted of members from Pantera (singer Phil Anselmo), Corrosion of Conformity (guitarist Pepper Keenan), and Crowbar (guitarist Kirk Windstein, bassist Todd Strange, and drummer Jimmy Bower). |
 | | Influential West Coast heavy metal quartet Machine Head formed in 1992 around the talents of ex-Vio-Lence guitar players Robert Flynn and Phil Demmel, bass player Adam Duce, and drummer Chris Kontos. |
 | | Known for its theatrical live show and the black masks that most of its members wear on-stage, Mushroomhead is one of the more unique and adventurous alternative metal outfits that emerged in the 1990s. |
 | | Velvet Revolver began with a spring 2002 jam session that reunited ex-Guns N' Roses bandmates Slash (guitar), Duff McKagan (bass), and Matt Sorum (drums) on-stage. |
 | | Fear Factory were one of the first bands to fuse the loud, crushing intensity of death metal with the cold harshness of industrial electronics and samples, producing a more varied sonic palette with which to express their bleak, pessimistic view of modern, technology-driven society. |
 | | Stone Temple Pilots were able to turn alternative rock into stadium rock; naturally, they became the most critically despised band of their era. |