The five dudes in Korn pretty much single-handedly closed the door on grunge and famously ushered in rap-rock and nu-metal.

Only three of the group’s original members remain, but after more than 15 years their passion, angst and fury haven’t waned.

“It’s unfortunate, but those things kind of taught us some lessons as far as trying to make each other happy and how delicate the relationships are,” said guitarist James “Munky” Shaffer, who comes with Korn to headline the Mayhem Fest at Comcast Center on Tuesday on a bill that includes Rob Zombie and Lamb of God.

Shaffer was referring to the rocky defections of original drummer David Silveria and guitarist Brian “Head” Welch.

“Essentially within a band there’s several different relationships,” Shaffer continued from a tour stop in Cincinnati. “There are several different interactions that always have to coexist. And it’s not always harmonious.”

The Southern California headbangers got their start playing sketchy halls in rural Bakersfield, Calif. Their angsty, metallic sound rocketed them from dark, drug-addled basements to the world’s biggest stages. They experienced down years in the 2000s, but the band’s latest, “Korn III: Remember Who You Are,” made its debut last week at No. 2 on the Billboard 200.

For the grim, stripped-down recording, Korn went back to theirroots by locking themselves in a cramped rehearsal room and planting original producer Ross Robinson behind the control board. The result is an ultra-personal, intensely simmering throwback of head-bobbing groove metal.

Read the full article at BostonHerald.com.