Aussie music legend Mike Brady has endured a nightmare moment on stage at the AFL grand final, with soundtrack issues flattening his performance of Up There Cazaly.

Brady, 77, soldiered on in front of 100,000 plus fans at the MCG, but no doubt would have been furious at what unfolded.

‘Mike Brady is a star. Nails the performance despite audio track sound issues,’ tweeted one eagle-eyed supporter on X.

‘Singing ‘I need to hear the track’ as you get into the chorus is a boss move.

’60 years ago this month, he knocked the Beatles off the No.1 chart. Absolute icon.’

Brady garnered plenty of sympathy on social media given the calamity wasn’t his fault.

‘Did it beautifully despite the problems,’ 3AW radio presenter Neil Mitchell said.

‘He’ll always be a star,’ posted another. ‘Still as popular as ever,’ said a third.

Brady co-wrote the iconic footy track in 1978, which at the time was an ode to footy great Roy Cazaly.

It soon reached top spot on the Australian charts and continues to be widely embraced by fans almost 50 years later.

Speaking ahead of the clash between Brisbane and Geelong, Brady was humbled to be part of the pre-game entertainment.

‘I’m once again extremely honoured to be asked to sing at this year’s AFL Grand Final,’ he said.

‘It’s 46 years since I first sang at the MCG…and it still gives me a tingle down my spine when I get out there and feel the heat of that massive crowd.’