LONDON, ENGLAND - SEPTEMBER 19: A France fan sings along with the national anthem during the 2015 Rugby World Cup Pool D match between France and Italy at Twickenham Stadium on September 19, 2015 in London, United Kingdom. (Photo by Shaun Botterill/Getty Images)

LONDON, ENGLAND - SEPTEMBER 19:  A France fan sings along with the national anthem during the 2015 Rugby World Cup Pool D match between France and Italy at Twickenham Stadium on September 19, 2015 in London, United Kingdom.  (Photo by Shaun Botterill/Getty Images)