Beyoncé Knowles was center stage when she sang the national anthem during today's presidential inauguration in Washington DC. Beyoncé had the support of husband Jay-Z at the event and got hugs from President Obama and First Lady Michelle Obama after she performed. Beyoncé is just one of the famous faces showing their support in our nation's capitol today, including Katy Perry, John Mayer, and Eva Longoria. Many of the stars have been in DC all weekend participating in the inauguration festivities including the National Day of Service as well as the Kids' Inaugural Concert. The fun will continue tonight with two official inaugural balls that the president and first lady are expected to attend.