Analysis of information sources in references of the Wikipedia article "Caledonia (song)" in English language version.
MacLean... is perhaps best known for his track, 'Caledonia' that is often referred to as Scotland's unofficial national anthem.
Dougie MacLean, the man who wrote Scotland's unofficial national anthem, Caledonia.
Who better then to open a festival steeped in Scottish history than MacLean... unofficial national anthem Caledonia came early in the set.