It was called the Tattoo the Earth tour, and I went in 1999. It was a festival type concert (kind of like Ozzfest). I saw Slayer, Slipknot, Sepultura, Sevendust, Nothingface and many other bands. There were tattoo booths set up all over the place. I didn't get a tattoo, (not sure if I would trust a travelling tattoo parlor) but I had a blast. I've been addicted to concerts ever since.