A video recap of the first day of Ozzfest Meets Knotfest, which was held on September 24-25, 2016 at San Manuel Amphitheater in Devore, California, can be seen below.
About 37,000 people attended the first day of the event, with 3,400 campers on the festival grounds.
The Ozzfest lineup was headlined by BLACK SABBATH, while SLIPKNOT closed out the Knotfest bill.
Prior to the concert, SABBATH singer Ozzy Osbourne and bassist Geezer Butler were asked what they thought such a massive show said about the state of rock music. "I don't know about the state of rock music, but I'm just gonna go up there and have some fun, you know," Ozzy said. "We're not trying to make a statement to the industry, we're just gonna have some fun." Geezer added: "It's good that we're still going and this kind of music's still going. To do something this big proves that it's still as popular as ever."
Also on the Ozzfest portion of the weekend were DISTURBED, OPETH, BLACK LABEL SOCIETY and others, while the Knotfest lineup included SLAYER, TRIVIUM, ANTHRAX, SUICIDE SILENCE and many more.
Both days featured three stages, with one of them named after late MOTÖRHEAD frontman Lemmy Kilmister.
The San Manuel Amphitheater and Festival Grounds is where Ozzfest began in 1996 and where Knotfest was staged last year.
The Ozzfest show was the last ever for BLACK SABBATH in California. The band played three more U.S. shows in Texas last November before visiting South America and ending its run with a series of U.K. gigs in January and February.
Ozzfest started 20 years ago and was the first national music festival of its kind dedicated to hard rock music.
Ozzfest has not been a traveling festival in the U.S. since 2007's "free" edition. The show morphed into a one-off event in Dallas in 2008, took 2009 off and played just six cities in 2010.