I went to see Iron Maiden last night. A friend wanted to see them, but couldn't find anyone who wanted to go, so I went along with him. I actually really enjoyed it. They properly rock, and I'd say more so than anything I saw of Glastonbury over the weekend.
I'd warmed myself up over the afternoon with my only Iron Maiden CD, some AC/DC, Motorhead etc. Out of the metal I've got, I wouldn't say Iron Maiden were up to much. However, playing live they absolutely rocked.
Of course, if you go to a Maiden gig, you have to contend with just about everyone wearing Maiden teeshirts. I was proudly an exception, although wearing black ;-) My ears don't work very well today though.