Here is a nice video of the Suzumiya Haruhi no Gekisou Concert featuring the song (and dance) Hare Hare Yukai. They did the full 3 minute version of the song, so you can listen and watch it here. Aside from the song, the Haruhi dance was given tribute.

(YouTube)

Hirano Aya (Suzumiya Haruhi), Chihara Minori (Nagato Yuki), and Goto Yuko (Asahina Mikuru) perform and dance to the song during the Suzumiya Haruhi no Gekisou Concert that took place on Sunday, March 18, 2007 in the Great Hall of Omiya Sonic City.

Also check out the dance in snow and the one where the cops shows up.

Tags: concert, dance, Hare Hare Yukai, Haruhi dance, Suzumiya Haruhi dance