Suzumiya Haruhi dance in Akihabara!
http://www.tokyomango.com/tokyo_mango/2007/04/video_cosplayer.html
A group people do the ending dance from one of my favorite anime shows, the Melancholy of Suzumiya Haruhi, on a street in Akihabara. The people apparently planned this event on the Japanese forum site, 2Channel. A couple of policemen show up and everyone scatters. Fun, though. ^_^