This is pretty cool.  Go to YouTube.com and type in ‘do the harlem shake’ into the search box.  Be sure do have your sound tuned on.

Let it run then if your browser supports it, check the sweet CSS effects.  Nice eh?  BTW, I tried in IE and it did not work, so I recommend using FireFox or Chrome or Safari.

Here is the direct link.

http://www.youtube.com/results?search_query=do+the+harlem+shake&oq=do+the+harlem+shake&gs_l=youtube.3..0i3l3j0l2j0i5.887.4690.0.8081.19.17.0.2.2.0.153.1432.12j5.17.0…0.0…1ac.1.5K79XOKPVww

Enjoy!