Kicking off the inauguration festivities, Beyonce Knowles took the stage at "We Are One: The Obama Inaugural Celebration" at the Lincoln Memorial in Washington DC on Sunday (January 18).
During her performance, Beyonce belted out a wondrous rendition of "America the Beautiful," yelling out "We are one" upon the song's conclusion.
With Bruce Springsteen, U2, George Lopez, Will.I.Am, Samuel L. Jackson, Queen Latifah and Tom Hanks among the other celebrities on-hand, the event included "a diverse array of talent featuring both musical performances and historical readings."
"We Are One," which aired live on HBO at 2:30PM and will be broadcast at 7PM and 11:30PM to cable and satellite subscribers, formally launched four days of festivities as part of President-elect Barack Obama's swearing-in ceremony, which is due to take place on Tuesday (January 20).
Bringing an end to the festivities is Tuesday night's Neighborhood Ball, during which time Beyonce will be singing the Etta James classic "At Last" during the Obama's first dance as President and First Lady.
Enjoy the pictures of Beyonce Knowles performing at the "We Are One: The Obama Inaugural Celebration At The Lincoln Memorial" (January 18).