Start here; definitely check this out:
(click 'play' and then 'with subtitles')
ungrounded.net
Numa Numa Dance (click 'back' to return)
American Idle? (click 'play')
http://www.ebaumsworld.com/american_idle_numa.html
From the guy who made it, Gary Brolsma: (best source for links)
http://www.garybrolsma.net/
Another good Flash link is here:
http://www.albinoblacksheep.com/flash/numa.php
Old link was here:
http://db.playego.com.br/orafiles/01122005120941567g.swf
(this might be a dead link now)
English text:
Catteacorner.com
(click 'back' to return)
More Links:
LegO-Zone
* Feujcity.com
* Ringtones
(Summer Hits)