Looking through the November 27th 2009 edition of Rolling Stone magazine. There is reportage on a concert that has not happened yet...
I had to check the magazine twice to be sure it didn't say October 27, 2009.
A magazine subscription used to come about a week before the news-stand. This was the advantage of a subscription. Now some are coming a good month before they hit the stands and seem to be PREDICTING THE FUTURE rather than reporting JUST BREAKING NEWS.