If you've been watching the World Cup tournament (and, yes, you should be) then you've been introduced to the vuvuzela.
Think the swarm of angry bees sound that has dominated the background noise and you've got it. If you've not yet gotten it, you'd better hurry -- the vuvuzela might be outta here rather soon.
There have been complaints by various players and teams, but the only argument I see as valid for banning the plastic trumpet from the various stadia is because of the potential for hearing damage. That is mentioned briefly in this story.
To gain an appreciation (I hope) for this intriguing instrument, consider this report from al-Jazeera.
If you ask me (and you haven't), I believe that they who don't like the noise emanating from the stadium need to blow it out.