What Karaoke crime makes you cringe?

McCord - Worst Show Ever (A) Never rap. You can’t rap, even though you think you can. (B) No bring-down jams. Upbeat slappers only. (C) Never use your real name. My karaoke pseudonym is Richie Sakai. No one ever questions the fat Irishman with the Japanese-sounding last name.

Melanie - Picture by  Kid Rock & Sheryl Crow

Text to 666-666 - Big groups of girls singing goodbye earl by dixie chicks is a karaoke crime i wish to never witness again.