Ahead of Thursday’s 4 Nations Faceoff Finals in Boston, Canadian songwriter Chantal Kreviazuk changed the lyrics of O’ Canada. She described it as a political statement to protest U.S. President Trump’s comments about Canada’s future sovereignty. Is it ever okay to alter a national anthem’s lyrics, be it a political protest or not? Robin Elliott, a musicologist at the University of Toronto, has specialized in Canadian music studies for several years. He joins Kristy Cameron on Ottawa Now.