We knew he was learning the words, but it was still magnificent. And it set the tone for Ireland to dominate the opening half.
Donnacha Ryan's lessons clearly helped the nationalised South African in his first Amhran Na bhFiann, and Stander didn't hesistate in belting it out:
He wasn't shy in belting out Ireland's Call either, although he's a way to go before he reaches the Peter O'Mahony levels of passion.
CJ Stander was immense in the first half too, with seven tackles and 11 carries in the opening half an hour.