Yes, yes, Christina Aguilera apparently flubbed the lines to the American national anthem - which amuses me because, here in Australia, it's quite rare to find anyone who knows all the lyrics to our anthem! Conclusion: Xtina should move to Australia, a country that has spent years discussing how much we hate our national anthem and would rather use a song about a man who steels sheep and then kills himself in a lake!! - but if you ask me, her greatest go at making professional mistakes is this clip reel of Burlesque bloopers.
Other than Christina stating "I nearly sang that line!" and other wagon wheel watusi whoopsiedaisies there is Cher taking multiple takes of a closeup of her feet, Cam Gigandet's "Famous Amos" cookie box surprise and general Stanley Tucci sexiness. So, let's face it, if you must watch one video where Christina Aguilera gets her lines wrong MAKE IT THIS ONE!