The song was at the centre of a controversy surrounding "ninety-minute bigots", an expression allegedly coined by former Rangers chairman Sir David Murray: "Ninety-minute Bigots do not hold beliefs but nonetheless sing songs at football matches which are sectarian, simply to join in with the rest of the crowd." Rangers have adopted several measures to tackle this behaviour including attempts to bring older Rangers songs back into popular use, with Murray speaking out against the singing of the "Billy Boys" on many occasions. In 2006, Rangers were charged by UEFA for discriminatory chanting over the singing of "Billy Boys" during a UEFA Champions League game against Villarreal. Rangers were found not guilty due to "Billy Boys" having been sung for years without the SFA or the Scottish government intervening against it and ruled that it was tolerated as a social and historic song. However, after an appeal where they were warned, Rangers were ordered by UEFA to make a public announcement at all home games, prohibiting the singing of the song despite UEFA admitting they were unable to do anything about it because it was a Scottish social issue.