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President Barack Obama bows as he and first lady Michelle Obama, wearing a ruby colored chiffon and velvet Jason Wu gown, gets ready to dance as singer Jennifer Hudson, right, sings Al Green's "Let's Stay Together" at the Inaugural Ball at the Washington Convention Center during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Charles Dharapak)

Singer Alicia Keys performs during the during the Commander-In-Chief's Inaugural Ball January 21, 2013 in Washington, DC. President Barack Obama is scheduled to show up at the ball after being sworn in today for his second term in a public ceremonial swearing in. (Photo by Joe Raedle/Getty Images)

First lady Michelle Obama joins U.S. President Barack Obama at the Commander-In-Chief's Inaugural Ball January 21, 2013 in Washington, DC. Obama was sworn in today for his second term in a public ceremonial swearing in. (Photo by Joe Raedle/Getty Images)

U.S. President Barack Obama (L) and first lady Michelle Obama greets attendees at the Commander-in-Chief Ball on January 21, 2013 in Washington, DC. Obama was sworn-in for his second term as president during a public ceremonial inauguration earlier in the day. (Photo by Justin Sullivan/Getty Images)

WASHINGTON, DC - JANUARY 21: Singer Brad Paisley performs during the Inaugural Ball at the Walter E. Washington Convention Center on January 21, 2013 in Washington, DC. U.S. U.S. President Barack Obama was sworn-in for a second term earlier in the day. (Photo by Alex Wong/Getty Images)

WASHINGTON, DC - JANUARY 21: Singer Jennifer Hudson performs during the Inaugural Ball at the Walter E. Washington Convention Center on January 21, 2013 in Washington, DC. U.S. President Barack Obama was sworn-in for a second term earlier in the day. (Photo by Alex Wong/Getty Images)

U.S. President Barack Obama (R) dances with first lady Michelle Obama at the Commander-in-Chief Ball on January 21, 2013 in Washington, DC. Pres. Obama was sworn-in for his second term as president during a public ceremonial inauguration earlier in the day. (Photo by Justin Sullivan/Getty Images)

WASHINGTON, DC - JANUARY 21: David Arquette (C) speaks onstage with Phillip Bloch, Omar Epps, Tim Daly, John Leguizamo, Taraji P. Henson, and Matt Bomer at The Creative Coalition's 2013 Inaugural Ball at the Harman Center for the Arts on January 21, 2013 in Washington, United States. (Photo by Stephen Lovekin/Getty Images)

President Barack Obama and first lady Michelle Obama dance at Commander-in-Chief's Inaugural Ball at the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Jacquelyn Martin)

Alica Keys performs during Inaugural Ball in the Washington Convention Center at the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Paul Sancya)

Brad Paisley performs during The Inaugural Ball at the Washignton convention center during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Paul Sancya)

Mana performs during the Public Inaugural Ball at the Walter E. Washington Convention Center on January 21, 2013 in Washington, DC. U.S. President Barack Obama was sworn in for his second term earlier in the day. (Photo by Mario Tama/Getty Images)

First lady Michelle Obama smiles has she dances with President Barack Obama during The Inaugural Ball at the Washignton convention center during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Cliff Owen)

Fun performs during The Inaugural Ball at the Washington convention center during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Paul Sancya)

U.S. President Barack Obama applauds while speaking with American soldiers in Kandahar, Afghanistan during the Commander-In-Chief's Inaugural Ball January 21, 2013 in Washington, DC. Obama was sworn in today for his second term in a public ceremonial swearing in. (Photo by Joe Raedle/Getty Images)

US President Barack Obama addresses the Commander-in-Chief's Ball, honoring US service members and their families, at the Walter E. Washington Convention Center on January 21, 2013 in Washington, DC. JEWEL SAMAD/AFP/Getty Images

US President Barack Obama and First Lady Michelle Obama attend the Commander-in-Chief's Ball, honoring US service members and their families, at the Walter E. Washington Convention Center on January 21, 2013 in Washington, DC. JEWEL SAMAD/AFP/Getty Images

President Barack Obama and first lady Michelle Obama dance at Commander-in-Chief's Inaugural Ball at the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Jacquelyn Martin)

Jennifer Hudson sings while President Barack Obama and his wife Michelle dance at the Inaugural Ball at the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Paul Sancya)

U.S. President Barack Obama dances with Air Force Staff Sergeant Bria Nelson as first lady Michelle Obama dances with Marine Gunnery Sergeant Timothy Easterling as sincer Jennifer Hudson performs during the Commander-In-Chief's Inaugural Ball January 21, 2013 in Washington, DC. Obama was sworn in today for his second term in a public ceremonial swearing in.. (Photo by Joe Raedle/Getty Images)

President Barack Obama and first lady Michelle Obama, wearing a ruby colored chiffon and velvet Jason Wu gown, dance as singer Jennifer Hudson, right, sings Al Green's "Let's Stay Together" at the Inaugural Ball at the Washington Convention Center during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Charles Dharapak)

President Barack Obama dances with first lady Michelle Obama during The Inaugural Ball at the Washignton convention center during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Cliff Owen)

U.S. President Barack Obama (L) dances with first lady Michelle Obama at the Commander-in-Chief Ball on January 21, 2013 in Washington, DC. Pres. Obama was sworn-in for his second term as president during a public ceremonial inauguration earlier in the day. (Photo by Justin Sullivan/Getty Images)

U.S. President Barack Obama and first lady Michelle Obama dance during the Commander-In-Chief's Inaugural Ball January 21, 2013 in Washington, DC. Obama was sworn in today for his second term in a public ceremonial swearing in.. (Photo by Joe Raedle/Getty Images)

US President Barack Obama and First Lady Michelle Obama dance while attending the Commander and Chief Ball at the Washington Convention Center January 21, 2013 in Washington, DC. Obama and Biden attended Inauguration balls after being ceremonially sworn in for a second term leading the United States earlier today. BRENDAN SMIALOWSKI/AFP/Getty Images

U.S. President Barack Obama and first lady Michelle Obama greet the crowd at the Commander-In-Chief's Inaugural Ball January 21, 2013 in Washington, DC. Obama was sworn in today for his second term in a public ceremonial swearing in. (Photo by Joe Raedle/Getty Images)

US President Barack Obama and First Lady Michelle Obama dance while attending the Commander and Chief Ball at the Washington Convention Center January 21, 2013 in Washington, DC. Obama and Biden attended Inauguration balls after being ceremonially sworn in for a second term leading the United States earlier today. BRENDAN SMIALOWSKI/AFP/Getty Images

WASHINGTON, DC - JANUARY 21: Singer/guitarist Johnny Rzeznik of the Goo Goo Dolls performs onstage at The Creative Coalition's 2013 Inaugural Ball at the Harman Center for the Arts on January 21, 2013 in Washington, United States. (Photo by Stephen Lovekin/Getty Images)

WASHINGTON, DC - JANUARY 21: U.S. President Barack Obama and first lady Michelle Obama dance together during the Comander-in-Chief's Inaugural Ball at the Walter Washington Convention Center January 21, 2013 in Washington, DC. Obama was sworn-in for his second term of office earlier in the day. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - JANUARY 21: U.S. President Barack Obama and first lady Michelle Obama arrive for the Comander-in-Chief's Inaugural Ball at the Walter Washington Convention Center January 21, 2013 in Washington, DC. Obama was sworn-in for his second term of office earlier in the day. (Photo by Chip Somodevilla/Getty Images)