Everyone and their grandmother has posted tracks featuring Vuvuzelas as part of the sound palette during this world cup, so this is very much a late challenge and barely escapes a yellow through it actually being a South African track, which I believe none of the others are. It's also got a really nice chorus of "Vuvu-zeeeeela, vuvu-zela" which is a bonus, and was apparently an official Bafana Bafana supporter's anthem.
Dj Cleo - Shapa Bafana Shapa (Mediafire)
What's perhaps more interesting, though, is that I got the track through a fantastic facebook group for South African house! This is precisely the sort of thing the all-pervasive nature of Facebook should facilitate, at least in theory, and if anyone has more good MP3-exchanging groups from less-well-known countries give me a shout out.