Hip-Hop, R&B, Pop, Rock, and Country united for HBO’s “We Are One: The Obama Inaugural Celebration at the Lincoln Memorial” in Washington, D.C., on Sunday. A patriotic Beyoncé performed “America the Beautiful” in front of the nation’s next first family and celebrities including Usher, John Legend, Shakira, Bono, Mary J. Blige, Tom Hanks, and Stevie Wonder to name a few.