The Welsh choir 'Only Boys Aloud' sang "Calon Lân", a traditional Welsh hymn during their audition, and later at the final of Britain's Got Talent, 2012,
Nid wy'n gofyn bywyd moethus,
Aur y byd na'i berlau mân:
Gofyn wyf am galon hapus,
Calon onest, calon lân.
Calon lân yn llawn daioni,
Tecach yw na'r lili dlos:
Dim ond calon lân all ganu
Canu'r dydd a chanu'r nos.
I’d not ask a life that’s easy,
Gold and pearls so little mean,
Rather seek a heart that’s joyful,
Heart that’s honest, heart that’s clean.
Heart that’s clean and filled with virtue,
Fairer far than lilies white,
Only pure hearts praise God truly,
Praise him all the day and night.
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