Oops!
Business Insider: At about 51 seconds in, as she was about to sing the fourth line ("O'er the ramparts we watched, were so gallantly streaming"), she accidentally sang a hybrid of the second line: "What so proudly we watched, at the twilight's last streaming."
Singing The Star Spangled Banner at the Super Bowl can either make you or break you. Hey Whitney, show Christina how it is done!
Via: Lucianne
Via: Business Insider