"American singers are always changing the words to our anthem at sporting events as they salute our upside-down flag. Last year, before a CFL Argonauts-Las Vegas Posse game, some lounge-lizard crooner even changed the tune of 'O Canada,' somehow confusing it with 'O Christmas Tree.'"

http://www.eye.net/eye/issue/issue_11.09.95/NEWS/nak1109.htm