Pupils who will perform for King Charles III and Queen Camilla on Thursday were rehearsing in the Senedd when new Prime Minister Sir Keir Starmer stopped by to listen.
Sir Keir was on a tour of the Welsh parliament with First Minister Vaughan Gething when he heard the students practising, telling them they had been “fantastic”.
The students, from Ysgol Treganna in Cardiff, will perform when the King and Queen visit Wales to mark 25 years of the Senedd.
Filmed by Andy Davies / Channel 4 News and edited by Pia Harold