Lady Gaga Performs for Obama Staffers
President Obama fetes staffers at final inaugural ball.
President Barack Obama's Second Inauguration
President Barack Obama dances with first lady Michelle Obama at the Commander-in-Chief Ball, Jan. 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. (Justin Sullivan/Getty Images)
