So first we had the photo of the tour dates on the back of the merch shirt from Japan, which had London, England listed as a tour stop: 2 hours ago, Billie posted a caption underneath his latest Instagram photo: "Hello England! What rhymes with shredding ??!!" Putting two and two together, we now (basically) have the confirmed appearance of Green Day at the 2012 Reading Festival. So, now how many more of you will be attending?