I've written about OK Go, a band I like, on two prior occasions. The first time, I even incurred a big, fat ugly correction for four errors in the piece, only one of which was present in my copy as filed. (I've forgiven and forgotten, obviously!) Plus a lot of randomly italicized letters. But this piece I wrote in the Kennedy Center's press closet in half an hour on a bottle of water and a cookie. With a headache. Hey, my first immediate-file review in five years this month as WashPo contributor.