In defense of Rufus Wainwright, a Canadian-American who sang the National Anthem at Dodger Stadium prior to Game 5 of the World Series, mistakes happen.
Singing in front of 40,000+ fans can be daunting, and it's understandable that errors can occur. However, a correct performance of the Canadian anthem on baseball's grandest stage is warranted and expected.
As
Wainwright surely knows the words or else he wouldn't have volunteered to sing the song in the first place, it's surprising that mistakes were made.
Author's summary: Rufus Wainwright's singing mistakes at the World Series.