Wales team produced a rendition of Calon Lân at their welcoming Rugby World Cup ceremony.
Since the team's arrival in Kitakyushu, the players have been amazed by the reception they have received.
When they landed, Japanese schoolchildren, sung them the Welsh national anthem, as well as Calon Lân.
And on Monday the squad had a phenomenal reception in Kitakyushu stadium, with more than 15,000 people turning up to watch them at an opening training session.
The players have returned the favour, bursting into song after receiving their caps from Welsh Rugby Union chairman, Gareth Davies.
The Wales squad have been continuing their preparations in the southern Japanese city ahead of their World Cup opener against Georgia on September 23.
They will travel to Toyota City later on this week.