President Barack Obama and first lady Michelle Obama dance during the Commander in Chief Inaugural Ball at the Walter E. Washington Convention Center on January 21, 2013 in Washington, DC. (Photo by Alex Wong/Getty Images)

JAN. 21, 2013 - President Barack Obama officially signs in his nominations for the Cabinet.

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President Barack Obama speaks during the presidential inauguration on the West Front of the U.S. Capitol January 21, 2013 in Washington, DC.

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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 earlier for his second term. (Photo by Joe Raedle/Getty Images)

WASHINGTON, DC - JANUARY 21: Singer Brad Paisley sings during the during the Commander-In-Chief's Inaugural Ball January 21, 2013 in Washington, DC. (Photo by Joe Raedle/Getty Images)

JAN. 21, 2013 - President Obama signs nominations for Sen.John Kerry (D-MA) to be named Secretary of State, White House Chief of Staff Jacob Lew Treasury Secretary, former Senator Chuck Hagel Defense Secretary and John Brennan Director of the CIA.

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JAN. 21, 2013 - President Barack Obama and wife Michelle arrive to a church service on the day of the president's second inauguration ceremony

JAN. 21, 2013 - President Barack Obama and family attend a church service on the morning of his second inauguration.

.S. Secretary of State Hillary Clinton (C), former U.S. President Bill Clinton and former U.S. President Jimmy Carter arrive during the presidential inauguration on the West Front of the U.S. Capitol January 21, 2013 in Washington, DC. B

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People wave and cheer at a television camera near the U.S. Capitol building on the National Mall before the Inauguration ceremony on January 21, 2013 in Washington, DC.

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U.S. President Barack Obama (R) arrives with U.S. Sen. Charles Schumer (D-NY) (L) during the presidential inauguration on the West Front of the U.S. Capitol January 21, 2013 in Washington, DC.

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Vice President Joe Biden is sworn in by Supreme Court Justice Sonia Sotomayor as wife Dr. Jill Biden looks on during the presidential inauguration on the West Front of the U.S. Capitol January 21, 2013 in Washington, DC.

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President Barack Obama is sworn in during the public ceremony as First lady Michelle Obama, and daughters, Sasha Obama (R) and Malia Obama look on during the presidential inauguration on the West Front of the U.S. Capitol Jan. 21, 2013 in Washington

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President Barack Obama waves during the public ceremonial inauguration on the West Front of the U.S. Capitol January 21, 2013 in Washington, DC.

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President Barack Obama gives his inauguration address during the public ceremonial inauguration on the West Front of the U.S. Capitol January 21, 2013 in Washington, DC.

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Beyoncé performs the national anthem as U.S. President Barack Obama looks on during the presidential inauguration on the West Front of the U.S. Capitol January 21, 2013 in Washington, DC.

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