A night of celebration

Vice President Joe Biden and his wife, Jill, arrive at the Neighborhood Ball.  (Gerald Herbert / Associated Press)

President Barack Obama, appearing with First Lady Michelle Obama, speaks at the Youth Inaugural Ball.  (Abby Brack / Getty Images)

Guests at the Youth Inaugural Ball cheer the arrival of freshly inaugurated President Barack Obama and his wife, Michelle.  (Saul Loeb - AFP/Getty Images)

Pop rock band Maroon 5, with lead singer Adam Levine, performs at the Neighborhood Inaugural Ball.  (Win McNamee / Getty Images)

Rock band the Grateful Dead performs at the Mid-Atlantic Inaugural Ball.  (David McNew / Getty Images)

Adam Levine of Maroon 5, Faith Hill, Jaimie Foxx, Beyonce, Alicia Keys and will.i.am perform at the Neighborhood Inaugural Ball.  (Max Whittaker / Getty Images)

President Barack Obama and First Lady Michelle Obama appear at the Neighborhood Ball, their first of 10 official balls for the night.  (Win McNamee / Getty Images)

Husband-and-wife duo Jennifer Lopez and Marc Anthony perform at the Western Inaugural Ball.  (Jeff Zelevansky / Getty Images)

Vice President Joe Biden and his wife, Jill, dance during the Commander-in-Chief’s Inaugural Ball.  (Haraz N. Ghanbari / Associated Press)

President Barack Obama steps off stage at the Youth Inaugural Ball.  (Jay L. Clendenin / Los Angeles Times)

President Obama dances with First Lady Michelle Obama at the Obama Home States Inaugural Ball.  (Carolyn Cole / Los Angeles Times)

President Obama and First Lady Michelle Obama dance at the Commander-in-Chief’s Inaugural Ball at the National Building Museum in Washington.  (Charles Dharapak / Associated Press)

President Obama dances with Army Sgt. Margaret Herrera and First Lady Michelle Obama dances with Marine Corps Sgt. Elidio Guillen during the Commander-in-Chief’s Inaugural Ball.  (Haraz N. Ghanbari / Associated Press)

Will.i.am of the Black Eyed Peas performs at the Neighborhood Inaugural Ball.  (Win McNamee / Getty Images)

President Barack Obama and First Lady Michelle Obama have their first dance of the evening during the Neighborhood Inaugural Ball.  (Pablo Martinez Monsivais / Associated Press)