Kirk Hammett of Metallica, Cheap Trick, and Pat Benatar are among the artists contributing stage-played and hand-signed instruments to a massive new charity auction.

Julien’s Auctions’ “Played, Worn & Torn” auction features over 800 instruments and pieces of memorabilia, including items from the personal collections of Hammett, Tommy Lee of Motley Crue, and Adam Clayton of U2.

The event also showcases iconic rarities from superstars such as Keith Richards, the Beatles, Elvis Presley, John Coltrane, Jimi Hendrix, David Bowie, and Ace Frehley, highlighted by his unforgettable stage-played “Shooter” Les Paul.

Gibson Gives is contributing 15 instruments used onstage and signed by some of music’s biggest stars, including Lzzy Hale, Rise Against, Mana, the All-American Rejects, and Imagine Dragons.

Of particular interest to Metallica fans is the one-of-one Gibson SG guitar CEO#4, designed and custom-built by Gibson CEO and President Cesar Gueikian.

Hammett used the guitar during the band’s performance of Black Sabbath’s “Hole in the Sky” at this summer’s Back to the Beginning festival, paying tribute to Ozzy Osbourne and his bandmates at their final performance together.

Read More: Ozzy's Final Show: See Who Covered Which Songs

“CEO#4 is a unique maple-top SG that combines elements of the Gibson SG, Super 400 and Supreme, and Les Paul Custom, finished in a Ghost Burst—a name coined by my friend Adam Jones of Tool,” Gueikian explains. “I created it as a tribute to Tony Iommi, the father of heavy metal, who defined the genre with a Gibson SG. After the show, Kirk signed the guitar, and it has remained untouched since, strings included. The guitar also comes with my backstage pass from that historic event.”

You can see the CEO#4 and all the other instruments Gibson made available for the auction in the gallery below, as well as a handful of items from other contributors.

You may bid on all of the items at Julien’s Auctions’ official site between now and November 20th.

All proceeds from Gibson’s portion of the auction will benefit Gibson Gives, supporting musicians worldwide through music education and health and wellness programs.

MusiCares, All Within My Hands, St. Jude Children’s Hospitals, and Teen Cancer America will also benefit from the Played, Worn and Torn auction.