Side by side we stick together, To uphold The Magpies name. Good old Collingwood forever, We know how to play the game. An unofficial addition to the theme song is the line ‘Cor Blimey’, which has been sung by the players after the fourth line of the theme song since the 1920s, according to an interview with Collingwood legend Harry Collier in the 1996 documentary 100 Years of Australian …