I have 11, two of which are music related. The first one I got was a Fear Factory design on my right shoulder. It's the FF logo from Demanufacture, with the brain and spine from Obsolete snaking through it. The other music-related tat is the eye from Tool's Lateralus on my chest. I got it about 2 months before the album came out, right after they started promoting it. People thought I was nuts for tattooing something from an album I hadn't heard yet, but I was right, and Lateralus turned out to be my second-favourite Tool album to date
I'll post pics of the rest later, if anyone cares to see them.