Coal Chamber emerged from the Los Angeles club scene in the mid-’90s to become one of nu-metal’s first-wave acts. Their commercial profile received a huge boost when they got the mosh pits churning at the inaugural Ozzfest in 1996 shortly before dropping their self-titled debut, an onslaught of groove-metal-inspired riffs cloaked in the darkness of gothic rock. Their tight relationship with Ozzy Osbourne also helped net them their biggest single: a 1999 version of Peter Gabriel’s “Shock the Monkey” featuring growler Dez Fafara trading verses with the Black Sabbath icon. After releasing three albums, Coal Chamber slipped into the first of several hiatuses in 2003. They would return to the action with 2015’s Rivals, featuring a heavier attack that shares more in common with Fafara’s other project, the death-metal-informed DevilDriver, than with the original nu-metal movement.