First lady Michelle Obama, center, and daughters Sasha, left, and Malia, right, react during the "Kids' Inaugural: Our Children. Our Future." concert in Washington on Jan. 19, 2013, as part of the 57th Inauguration weekend of events.
First lady Michelle Obama, right, and daughters Sasha, second right, and Malia, third right, arrive with Jill Biden, fourth right, wife of Vice President Joe Biden, along with several of Biden's grandchildren, at the "Kids' Inaugural: Our Children. Our Future." event in Washington on Jan. 19, 2013.
Jill Biden, wife of Vice President Joe Biden, and her grandchildren react during the "Kids' Inaugural: Our Children. Our Future." event in Washington on Jan. 19, 2013.
First lady Michelle Obama, center, and daughters Sasha, left, and Malia, right, react during the "Kids' Inaugural: Our Children. Our Future." event in Washington on Jan. 19, 2013.
First lady Michelle Obama, right, arrives with daughters Malia, left, and Sasha Obama, center, during the Kids' Inaugural concert at the Washington Convention Center on Jan. 19, 2013, in Washington.
Usher performs during the "Kids' Inaugural: Our Children. Our Future." concert in Washington on Jan. 19, 2013, as part of the 57th Inauguration weekend of events.
Usher performs during the "Kids' Inaugural: Our Children. Our Future." concert in Washington on Jan. 19, 2013, as part of the 57th Inauguration weekend of events.
Usher performs during the "Kids' Inaugural: Our Children. Our Future." concert in Washington on Jan. 19, 2013, as part of the 57th Inauguration weekend of events.
First lady Michelle Obama and daughters Sasha, center, and Malia react as Usher performs during the "Kids' Inaugural: Our Children. Our Future." event in Washington on Jan. 19, 2013.
First lady Michelle Obama, second right, cheers with daughters Malia, second left, and Sasha, center, during the Kids' Inaugural concert at the Washington Convention Center on Jan. 19, 2013, in Washington.
First lady Michelle Obama and daughters Sasha, center, and Malia react as Usher performs during the during the "Kids' Inaugural: Our Children. Our Future." event in Washington on Jan. 19, 2013.
Usher performs during the Kids' Inaugural concert at the Washington Convention Center on Jan. 19, 2013, in Washington.
Usher performs during the "Kids' Inaugural: Our Children. Our Future." event in Washington on Jan. 19, 2013.
?"Glee"? cast members Naya Rivera, left, and Darren Criss perform during the "Kids' Inaugural: Our Children. Our Future." event in Washington on Jan. 19, 2013, as part of the 57th Inauguration weekend of events.
Jill Biden, wife of Vice President Joe Biden, speaks during the "Kids' Inaugural: Our Children. Our Future." event in Washington on Jan. 19, 2013.
Sasha Obama, right, and and Malia Obama, daughters of President Barack Obama, listen as Jill Biden (not pictured), wife of Vice President Joe Biden, speaks during the "Kids' Inaugural: Our Children. Our Future." event in Washington on Jan. 19, 2013.
Sasha Obama, right, and and Malia Obama, daughters of President Barack Obama, listen as Jill Biden (not pictured), wife of Vice President Joe Biden, speaks during the "Kids' Inaugural: Our Children. Our Future." event in Washington on Jan. 19, 2013.
First lady Michelle Obama, left, hugs Jill Biden, wife of Vice President Joe Biden during the "Kids' Inaugural: Our Children. Our Future." event in Washington on Jan. 19, 2013.
First lady Michelle Obama speaks during the "Kids' Inaugural: Our Children. Our Future." event in Washington on Jan. 19, 2013.
First lady Michelle Obama speaks during the "Kids' Inaugural: Our Children. Our Future." event in Washington on Jan. 19, 2013.
Katy Perry performs during the "Kids' Inaugural: Our Children. Our Future." event in Washington on Jan. 19, 2013.
Katy Perry performs during the "Kids' Inaugural: Our Children. Our Future." concert in Washington on Jan. 19, 2013, as part of the 57th Inauguration weekend of events.
Katy Perry performs during the "Kids' Inaugural: Our Children. Our Future." concert in Washington on Jan. 19, 2013, as part of the 57th Inauguration weekend of events.
Katy Perry performs during the "Kids' Inaugural: Our Children. Our Future." concert in Washington on Jan. 19, 2013, as part of the 57th Inauguration weekend of events.
Katy Perry performs during the "Kids' Inaugural: Our Children. Our Future." concert in Washington on Jan. 19, 2013, as part of the 57th Inauguration weekend of events.