I personally never felt the urge to get tattooed or pierced, but I have nothing against them per se.
It's just that when I see most tatoos, I find them stupid because they are permanent statements of temporal emotions, and most tatooed people I know started to regret them quite early, especially if the tattoo had somehting to do with their love life.
So if you really want to have a tattoo, go for something that is timeless, both in design and in message, like the tattoo my brother got. He was singer of a punkband, and got a beautiful mixture of tones, flames and stars etc. on his lower leg, so it just shows his passion for music, without being specific. That way, it still fits if his taste in music changes.
On a sidenote: I'd go for a heart with a "your name" ribbon on the upper arm :P