Dunno maybe this was localized but

Tunak Tunak Tun was declared the anthem of my California middle school computer graphics class. Lots of FlashMX tribute animations and such.

It apparently went way beyond that, as we saw the Draenei rocking that dance in WoW: Burning Crusade. :D

It still freaking slaps. :D

It was a great time for foreign music, as Gary's silly dance and lip sync to the "numa numa" song was proliferating everywhere.

I wonder if a lot of this was from all the fun file sharing and explosion of P2P networks going on? I don't miss how easy it was to catch malware but I do miss some very particular feeling about those days...