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Metallica, Nine Inch Nails, Judas Priest, and Korn will headline the 2021 “Louder Than Life” Festival. The four-day event will take place between September 23rd and 26th at Louisville, Kentucky’s Highland Festival Grounds at KY Expo Center.

Pollstar reported other performers including such heavyweights as Jane’s Addiction, Mammoth WVH, Snoop Dogg, Machine Gun Kelly, Staind, Mudvayne, Seether, Cypress Hill, Anthrax, Beartooth, and Sevendust, among others.

Single day and weekend passes are on sale now via louderthanlifefestival.com, starting at $99.50 for single day and $249.50 for four-day passes.

Judas Priest frontman Rob Halford told us that an unexplainable transition occurs prior to him hitting the stage, which turns from soft-spoken, mild mannered man offstage to “Metal God” by showtime: “Something happens — I don’t know what it is. It’s kind of intangible. It’s probably best left unanalyzed, because it might be (laughs) too scary to find out what the hell’s going on. I know that something takes over — that’s just the full extent of the passion that I have for my music, and the fact that to some extent, it’s always been my therapy.”