The judges were not expecting this on last night's Voice Of Ireland.
Pauric O'Meara performed Mark McCabe's "Maniac 2000" but not the way we know it.
The song became an Irish anthem and it would be unusual for any Irish person, not recognise it immediately.
But some of the judges could not get their heads around what they were listening to, especially former Westlife band member Kian Egan.
But when the penny dropped it was smiles and turning chairs all around.
