"Billy Boys", also titled "The Billy Boys", is a loyalist song from Glasgow, sung to the tune of "Marching Through Georgia." It originated in the 1920s as the signature song of one of the Glasgow razor gangs led by Billy Fullerton and later became viewed to reflect the long-running sectarian religious hatred directed by some Protestants against Catholics in the city. It is associated in particular with Rangers F.C. Origins Billy Boys originated in the 1920s as the signature tune of the Billy Boys, who were a Protestant street gang in Bridgeton (an area of Glasgow historically associated with the city's Protestant population, and with Scottish unionism - Brigton is the Scots form of Bridgeton) led by Billy Fullerton. The gang was named after King William of Orange, popularly known as "King Billy". The gang often clashed with Roman Catholic gangs such as the Norman Conks and the Calton Tongs. Fullerton was a member of the British Fascists who was awarded a medal for strike-breaking during the 1926 General Strike and formed a Glasgow branch of the British Union of Fascists with the onset of World War II. The Billy Boys song was often sung loudly when the gang performed it. They regularly sang it when they marched through primarily Catholic areas of Glasgow on Catholic holy days. This often led to the Billy Boys being attacked by members of the Norman Conks as a result. Despite being primarily based in Glasgow, in the 1930s the Billy Boys were invited to march in Belfast and sang Billy Boys while they were there as part of The Twelfth celebrations. The Brigton Billy Boys and their youth wing, the Derry Boys, started to attend association football matches in the late 1920s and early 1930s. During this time, they attended Rangers matches and Rangers fans started to sing the Billy Boys song as part of a perceived affiliation with the Billy Boys. Despite Percy Sillitoe, the Chief Constable of Glasgow, eradicating the Glasgow razor gangs and most young Protestants joining the Orange Order instead of the remaining gangs, Rangers fans continued to sing the Billy Boys in tribute to Fullerton as he still retained a prominent position among Glasgow Protestants even after the gangs had disbanded. The Orange Order then adopted the "Billy Boys" song and changed the lyrics to be played on Orange walks, with the references to Billy being altered to