There have been so many great number one singles over the years that it's pretty much impossible to decide which is the best. But you know what? With your help, we're gonna give it a red hot go!
Running from June 10th to June 28th, we'll be playing the best tracks ever to top the Australian charts and asking you to help us find the number one to end all number ones.
To get yourself in the mood, why not have a listen to our Spotify playlist below?