HARUHI SAIKOU!!!!!
There's two parts, the first part is mainly talk, if you don't know any japanese, the majority of it would be pretty boring. When they introduce the character Haruhi and played the God Knows... concert scene, the audience went insane and even doing wotagei.

The last part of it has a little skit that's pretty funny.
Part two was the concert, which was totally kick ass. The best part was the appearance by ENOZ!!!! And Aya Hirano playing the guitar for the two songs! <3333 Now I know who's guitar Nagato's guitar is based off(which is what I guessed the guitar was based off). The SG <3 (I've always wanted a white SG, but those are only limited editions :/) As always, Hare Hare Yukai was a huge hit among the wota. Everyone was dancing along, even me.

It was so cute when Aya started crying <333 I knew she tended to cry during the Haruhi events, so I hoped that the same would happen at AX, but the audience/staff sucked. Anyways, yeah the concert was awesome.
BTW, The guy who does Koizumi's voice is totally gay, even more than Koizumi

Kyon and Tanaguchi were hilarious. The three main female seiyuu's were so cute.