VIDEO: Beyonce Sings National Anthem at Presidential Inauguration

With an assist from the US Marines, Beyonce put on a beautiful performance singing the national anthem at President Obama's second inauguration. Bey will take the stage again in a few weeks for the Super Bowl halftime show.

Kelly Clarkson sung "My Country 'Tis of Thee" and James Taylor sang "America the Beautiful" at the inauguration. Check those out here.