They are celebrating the music of Silverchair.
We have no idea what's going on.
Ocean Grove play the Rock Sound Breakout Stage at Slam Dunk Festival this weekend. And we took photos, because Ocean Grove.
Big, but also tiny.
What did we just watch?
You haven't heard anything like this.
Welcome to Odd World.
Are you ready?
What a line-up.
Time for some Aussie appreciation.