It looks like those of you living outside Australia or NZ may be able to get your chance to listen to him perform at the NRL Final.
Here is a schedule of events for the day which mentions Meat.. Bear in mind that these are Australian times, which I am almost certain (no guarantees though) that the times stated are GMT+10:
http://www.nrl.com.au/finals/general.html
According to this schedule, it looks like Meat will only be a minor part of the entertainment, and not the headliners (who understandably are an Australian band). But hopefully he can convince viewers and listeners that he is the best!!!
I am told that an Australian radio station that can be heard online,
http://www.2gb.com.au, will be broadcasting the event. However, one cannot be sure that they will broadcast the non-game (ie Meat) parts. I cannot find any information about the broadcast on that site, however, there are links to listen at the top of the home page, and near the bottom right (you might need to scroll down).
So if you have good bandwidth and are able to save the performance somehow, you might like to do others a favour and make it available for others later.