Machine Head frontman Robb Flynn and Spiralarms/Forbidden guitarist Craig Locicero have put together an all-star tribute band that will perform classic Black Sabbath songs at an upcoming benefit concert. The show will be Jan. 17 at the Oakland Metro Operahouse in Oakland, Calif.

We don't know the exact band lineup yet, but it will include members of bands such as Metallica, Slayer, Testament, Exodus, Suicide Silence, Death Angel and Rubble along with Flynn and Locicero.

Locicero explains how the idea for the benefit concert came about: "A good friend of ours and all around great person, Nikki Davis, was in a motorcycle accident with her husband Jeff. Sadly, Jeff died at the scene. Fortunately, Nikki survived but she was unconscious for a few days. She awoke to the daunting reality that her husband, soulmate and best friend had passed away. It was heartbreaking to all of us in the Bay Area scene. Robb Flynn and I have known Nikki for at least 25 years and she is a huge supporter of the Bay Area's metal and punk scene."

Locicero continues: "I wanted to help Nikki out a year ago, but most every band was busy on tour and unavailable. A few weeks ago, I had approached Robb about doing a benefit for Nikki and he thought it was a great idea. Robb has gone above and beyond to help bring together something very special and memorable to help Nikki on January 17th."

"He's been the catalyst for getting this thing off the ground so quickly and Nikki is very thankful," Locicero says. "We hope to raise enough money to help Nikki continue to get back on her feet because the healing is not finished. She still has medical bills to pay and we want to do anything we can to help our old friend."

For more information on the concert and to purchase tickets, go here.