From The Smoking Gun:

NOVEMBER 12–Meet Kyle Drinkwine. The Wisconsin man, 24, allegedly became so incensed by a lackluster karaoke performance of a heavy metal song that he assaulted the singer and a second man, police charge. According to a River Falls Police Department report, Drinkwine throttled singer James Mischler, 28, and his friend Cyrus Kozub, 29, “over one’s ability to sing karaoke.”