Headbangers ball

I recently found myself at a Megadeth concert. Not really my type of music and I went more as a favour to a friend. That said, it was an interesting evening. Aswell as the stereotypical headbangers donned in black skulled t-shirts, there were salarymen in suits some clearly in their forties. What really surprised me was what looked like a 50 year old Granny, no more than 4 foot tall, rocking from sise to side for the duration of the show. She was stood in front of a 6 foot headbanger who blocked her view, but she didn't let that ruin her evening.