The Drudge Dance was a dance of singing Drudges that were captured by some Isparian petkeepers and trained to sing for the Isparians' entertainment. The song is most popular among children thanks to its puerile tune.
Behind the Scenes
A player used Audacity or some other type of audio-editing software to put together an elaborate musical number combined with the mewling of drudges and other instruments.
Song Audio Link
http://www.angelfire.com/rpg2/dragons/Drudge_Dance.wav (you must copy/paste this into your browser for the link to work)
RL Videos
In the portal.dat for Verdict, a little icon was found of a humanoid (this icon was removed later), see September 2002 original portal.dat at Sucamarto's ACHeaven. During the ACPL in 2002, the mystery was solved... See this link, this picture and this video (click the icon on the left menu)