"Making it to the half century mark can be equal parts daunting and relieving," Keenan said in a statement. "I figured I would remove the sting of officially being referred to as 'Gramps' by throwing a party and outlasting all of my rude friends."

The event will also offer a reunion performance by the group Failure, which is extra special for Keenan. The group features Troy Dean Van Leeuwen, who played guitar in A Perfect Circle before joining Queens of the Stone Age in 2003.