Jer
A window to the west, a blazing star above
Not so much in the U.S., but I saw a Gamma Ray show in Barcelona around 2005-2006 and I was shocked by the number of attractive, nice-smelling, non-tattooed 20-something women who were there. It might have even been 1/3 women in the audience. A very pleasant experience.The male to female ratio at Metal concerts isn't normally favourable either.