Schools across the country have been singing Hen Wlad Fy Nhadau ahead of Cymru's last-16 clash against Denmark tomorrow.
Schools from Môn to Mynwy have been posting videos of their pupils singing the anthem on Twitter using the hashtag #CmonCymru.
Earlier this week the Football Association of Wales encouraged schools to sing the national anthem in what appeared to be a thinly veiled criticism of the UK Government backed 'One Britain One Nation Day'.
The FAW asked the schools to send in clips so that a "special compilation" could be created ahead of match day.