US national anthem performance before Stanley Cup playoff game sparks outrage among fans / Kings serenaded by another national anthem by harmonica chorus from Koreatown senior citizen center / Thomas Tuchel says he will not sing national anthem until he's earned it / Katherine Jenkins sings national anthem in bar / Tuchel: I have to earn the right to sing national anthem / Canadian anthem singer at 4 Nations championship changes lyrics in political jab toward Trump / At the 4 Nations tournament, a trade war hits the ice. Amidst boos, why do we still sing national anthems at sporting events? / Italians sing their national anthem with gusto while ours is a dirge / With booing of 'Star-Spangled Banner,' do national anthems belong in sport? / Europe's 4th biggest country has no national anthem lyrics because no one can agree them