Ah, that's another song, as in Bill Barclay's "12 Days of Christmas" - "a wee heavy and a half pint". Think it's in the DT, or at least in some thread somewhere on this site.

That was Aled Jones who sang the original "Walking in the Air" song for Snowman: he now regularly presents "Songs of Praise" on Sundays on BBC TV.

Yes, the parody version videos are hilarious. Pronunciation? I think most of my Scots friends would say something like Eye-rrun I don't like it much myself: the only time I drink it is when we go to play for dancing at a primary school for their Burns Supper!

Our nephew in British Columbia thought it was fab: this was 20+ years ago when you could still get Irn Bru concentrate for Sodastream machines, and we took a couple of bottles in our luggage when we visited the family!