Christina Aguilera to sing national anthem --
Christina Aguilera sings the national anthem before Game 6 of the NBA basketball finals between the Los Angeles Lakers and the Boston Celtics, Tuesday, June 15, 2010, in Los Angeles.
ARLINGTON, Texas Christina Aguilera says she flubbed a line as she belted out the national anthem at the start of the Super Bowl on Sunday night after getting lost in the moment and losing her place.