Delilah is a 1967 chart-topper first sung by the Welsh dragon Sir Tom Jones. The song topped the charts in many countries. It sold millions of copies. It won the composer and lyricist an Ivor Novello award in 1968. And it has been an unofficial anthem for Welsh rugby fans for 50 years.

So why is the Welsh Rugby Union banning this song from being sung by the choir at Cardiff’s famous Principality Stadium during Wales rugby international match days?

The reason is apparently due to one line of the song, telling the story of a jilted and jealous lover, which reads:

‘I crossed the street...