US President Barack Obama (C) and daughters Sasha (L) and Malia (R) participate in the 2011 National Christmas Tree Lighting on the Ellipse in Washington, DC, USA, on 01 December 2011. EPA/ROGER L. WOLLENBERG / POOL
First Lady Michelle Obama reads "The Night Before Christmas" with Kermit the Frog during the 2011 National Christmas Tree Lighting on the Ellipse in Washington, DC, USA, on 01 December 2011. EPA/ROGER L. WOLLENBERG / POOL
Kermit the Frog and Santa Claus perform during the 2011 National Christmas Tree Lighting on the Ellipse in Washington, DC, USA, on 01 December 2011. EPA/ROGER L. WOLLENBERG / POOL
US President Barack Obama (L) and daughter Malia participate in the 2011 National Christmas Tree Lighting on the Ellipse in Washington, DC, USA, on 01 December 2011. EPA/ROGER L. WOLLENBERG / POOL
First Lady Michelle Obama hugs children after reading "The Night Before Christmas" with Kermit the Frog during the 2011 National Christmas Tree Lighting on the Ellipse in Washington, DC, USA, on 01 December 2011. EPA/ROGER L. WOLLENBERG / POOL
US President Barack Obama hugs daughter Sasha during the 2011 National Christmas Tree Lighting on the Ellipse in Washington, DC, USA, on 01 December 2011. EPA/ROGER L. WOLLENBERG / POOL
The South Portico of the White House is seen after the 2011 National Christmas Tree Lighting on the Ellipse in Washington, DC, USA, on 01 December 2011. EPA/ROGER L. WOLLENBERG / POOL
US President Barack Obama (C) and daughters Sasha (L) and Malia (R) participate in the 2011 National Christmas Tree Lighting on the Ellipse in Washington, DC, USA, on 01 December 2011. EPA/ROGER L. WOLLENBERG / POOL
US President Barack Obama (R) sings a Christmas carol with Santa Claus (L), during the National Christmas Tree lighting ceremony on the Ellipse near the White House in Washington DC, USA, 01 December 2011. President Calvin Coolidge lit the first National Christmas tree, a 48-foot Balsam fir, in 1923. EPA/MICHAEL REYNOLDS
US President Barack Obama (R) sings a Christmas carol with Santa Claus (L), during the National Christmas Tree lighting ceremony on the Ellipse near the White House in Washington DC, USA, 01 December 2011. President Calvin Coolidge lit the first National Christmas tree, a 48-foot Balsam fir, in 1923. EPA/MICHAEL REYNOLDS RECROP OF epa03021570
US President Barack Obama (R) greets a crowd with his daughter Sasha (front L) and First Lady Michelle Obama (back L), during the 89th annual National Christmas Tree lighting ceremony, on the Ellipse near the White House in Washington DC, USA, 01 December 2011. President Calvin Coolidge lit the first National Christmas tree, a 48-foot Balsam fir, in 1923. EPA/MICHAEL REYNOLDS
The National Christmas Tree is lit during a ceremony on the Ellipse near the White House in Washington DC, USA, 01 December 2011. President Calvin Coolidge lit the first National Christmas tree, a 48-foot Balsam fir, in 1923. EPA/MICHAEL REYNOLDS
The White House is seen during the 89th annual National Christmas Tree lighting (R), on the Ellipse near the White House in Washington DC, USA, 01 December 2011. President Calvin Coolidge lit the first National Christmas tree, a 48-foot Balsam fir, in 1923. EPA/MICHAEL REYNOLDS