Irish rugby fans danced impromptu jigs outside Eden Park after their side produced the first big upset at the Rugby World Cup on Saturday night.
Ireland beat Australia 15-6.
No tries were scored and Ireland's points came from four penalties and a dropped goal. But the crowd of about 58,000 did no seem to mind.
The half time score was 6-6.
As the Wallabies wilted - Irish fans, with help from green-clad New Zealanders - made Auckland sound like Dublin.
"We swear we were in Dublin with that crowd,'' said Irish skipper Brian O'Driscoll afterwards.
''Absolutely incredible support and it was our job to give them something to shout about and thankfully we did."
Police say the crowd was well behaved.
It was a famous victory - Ireland's first over Australia in five attempts at World Cups.
Ireland's next game is against Russia in Rotorua on 25 September.