Before their killer gig at the MCG on Tuesday night, the announcer for Guns N' Roses infamously introduced the band to 'Sydney'.
The blunder was well-reported, with the lead guitarist Slash even referencing the 'Spinal Tap moment' on Twitter while thanking the Melbourne crowd.
7 News, however, had their own balls-up while covering the faux pas.
In a Tweet that has since been deleted, the 7 News Melbourne account claimed that '#ACDC' had "an embarrassing start to their reunion concert".
The error didn't go unnoticed: