"Flower of Scotland" (Scottish Gaelic: Flùr na h-Alba) is a Scottish song, used frequently at special occasions and sporting events. Although there is no official national anthem of Scotland, "Flower of Scotland" is one of a number of songs which fulfil this role. It was written by Roy Williamson of the folk group the Corries, and presented in 1967, and refers to the victory of the Scots, led by Robert the Bruce, over England's Edward II at the Battle of Bannockburn in 1314.

The song was used as the victory anthem of Team Scotland at the Commonwealth Games in 2010 replacing "Scotland the Brave". This trend continued to the 2014 Commonwealth Games in Glasgow where it was again Team Scotland's anthem and was sung following a Scottish first place. (notably it was sung 4 times when Team Scotland won 4 gold medals in the opening day).

More Info: en.wikipedia.org