The Boston Celtics have made some major changes in the off season. Paul Pierce and Kevin Garnett were traded to the Brooklyn Nets, in return the Celtics got players and drat picks.
One of those new arrivals to the TD Garden is Gerald Wallace. Despite being in the league since 2001, it has only now come to light how much the small forward sounds like a didgeridoo.
(Skip forward to around 40 seconds in)
https://www.youtube.com/watch?v=tbkfcS65B-U
[UPDATE] If that somehow didn't convince you, listen to what happens when it's played five times simultaneously.
In case you are unaware what a didgeridoo sounds like.
https://www.youtube.com/watch?v=81vLopFB3wI