Concert photography should be categorised among extreme sports, it offers a genuine adrenaline rush. It combines street photography and portrait photography, it is as much about reacting as about revealing. I like those subtle moments when the artists look straight into the camera, when they smile, when they get carried away.
I started "serious" concert photography in 2005. Lacking other photography opportunities, I carried my camera along to a metal gig (Hypocrisy). Since then it's become an obsession.