A male voice choir surprised Monday morning commuters with a rendition of Welsh hymn Calon Lân. Caerphilly male voice choir were on the Cardiff-bound train from Caerphilly when they broke into song.

Passengers waiting for a train in Pontypridd burst into a roaring rendition of "Calon Lân" after the ... Williams captures passengers singing the classic Welsh hymn, meaning "pure heart", loudly ...

On the weekend, crowds of people were spotted singing Calon Lân loudly and proudly at a train station. Now a Welsh male voice ...

And to show their support, thousands of Wales rugby fans have been belting out Welsh hymns in a show of ... and the national anthems. Here they sing Calon Lan. Footage shows parking problems ...