The National Anthem isn't an easy song to sing -- even Beyonce needed a little help with it! But when you have five great voices instead of one, it flows much more easily. Maybe that's why Fifth Harmony did such an incredible job!

The ladies belted out 'The Star-Spangled Banner' at the NASCAR Service Master 200 race, and they hit every note and didn't flub a single lyric. And they performed acapella! That's better than some non-'X Factor' reality show judges have done. Good job, girls!