Park Record Media Center

With the White House in the background, the National Christmas Tree is lit during the lighting ceremony on the Ellipse, Thursday, Dec. 6, 2012 in Washington. (AP Photo/Alex Brandon)

President Barack Obama, first lady Michelle Obama, Malia Obama, Sasha Obama and Michelle Obama's mother Marian Robinson, participate in the 90th annual National Christmas Tree Lighting ceremony on the Ellipse south of the White House, Thursday, Dec. 6, 2012 in Washington. (AP Photo/Alex Brandon)

President Barack Obama, right, first lady Michelle Obama, left, Sasha Obama, second from left, and Malia Obama, sing during the 90th annual National Christmas Tree Lighting ceremony on the Ellipse south of the White House, Thursday, Dec. 6, 2012, in Washington. (AP Photo/Alex Brandon)

Malia Obama attends a concert during the 90th National Christmas Tree Lighting Ceremony on the Ellipse behind the White House on December 6, 2012 in Washington, DC. This year is the 90th annual National Christmas Tree Lighting Ceremony. (Photo by Olivier Douliery-Pool/Getty Images)

President Barack Obama, right, and daughter Malia Obama, sing as Santa Claus arrives during the 90th annual National Christmas Tree Lighting ceremony on the Ellipse south of the White House, Thursday, Dec. 6, 2012, in Washington. (AP Photo/Alex Brandon)

President Barack Obama and his daughter, Sasha, attend the National Christmas Tree Lighting on the Ellipse in Washington, Dec. 6, 2012. (Luke Sharrett for The New York Times)

First lady Michelle Obama (R) and their daughters Malia (C) and Sasha Obama light the 90th National Christmas Tree during the Lighting Ceremony on the Ellipse behind the White House on December 6, 2012 in Washington, DC. This year is the 90th annual National Christmas Tree Lighting Ceremony. (Photo by Olivier Douliery-Pool/Getty Images)

U.S. President Barack Obama (L) with his wife first lady Michelle Obama (R) and their daughters Malia (2nd R) and Sasha Obama light the 90th National Christmas Tree during the Lighting Ceremony on the Ellipse behind the White House on December 6, 2012 in Washington, DC. This year is the 90th annual National Christmas Tree Lighting Ceremony. (Photo by Olivier Douliery-Pool/Getty Images)

U.S. President Barack Obama (2nd L), first lady Michelle Obama (R), and their daughters Malia (3rd R) and Sasha (3rd R) participate with host Neil Patrick Harris (L) in the 90th lighting of the National Christmas tree in front of the White House in Washington, December 6, 2012. REUTERS/Jason Reed

President Barack Obama, first lady Michelle Obama and their daughters Sasha, second from left, and Malia react as the girls flip the switch to light the National Christmas Tree during the 90th annual National Christmas Tree Lighting on the Ellipse, Thursday, Dec. 6, 2012, in Washington. This year's giant blue spruce is new, transplanted in October on the Ellipse, south of the White House. (AP Photo/Carolyn Kaster)

US President Barack Obama (2nd L) alongside his daughter Malia (L), sing with actor Neil Patrick Harris (2nd R) and actor Rico Rodriguez (R) from the televison show "Modern Family" during the National Christmas Tree Lighting on the Ellipse adjacent to the White House in Washington, DC, on December 6, 2012. The annual event, hosted by Harris, features US President Barack Obama and performances by Jason Mraz, Ledisi, James Taylor, Kenny "Babyface" Edmonds, Colbie Caillat and American Idol season 11 winner Phillip Phillips. SAUL LOEB/AFP/Getty Images

Malia Obama attends the concert during the 90th National Christmas Tree Lighting Ceremony on the Ellipse behind the White House on December 6, 2012 in Washington, DC. This year is the 90th annual National Christmas Tree Lighting Ceremony. (Photo by Olivier Douliery-Pool/Getty Images)

Singer and songwriter Jason Mraz performs at the concert during the 90th National Christmas Tree Lighting Ceremony on the Ellipse behind the White House on December 6, 2012 in Washington, DC. This year is the 90th annual National Christmas Tree Lighting Ceremony. (Photo by Olivier Douliery-Pool/Getty Images)

Phillip Phillips, winner of American Idol Season 11 performs a the concert during the 90th National Christmas Tree Lighting Ceremony on the Ellipse behind the White House on December 6, 2012 in Washington, DC. This year is the 90th annual National Christmas Tree Lighting Ceremony. (Photo by Olivier Douliery-Pool/Getty Images)

Singer Kenny "Babyface" Edmonds performs during the National Christmas Tree Lighting on the Ellipse adjacent to the White House in Washington, DC, on December 6, 2012. The annual event, hosted by Actor Neil Patrick Harris, features US President Barack Obama and performances by Jason Mraz, Ledisi, James Taylor, Kenny "Babyface" Edmonds, Colbie Caillat and American Idol season 11 winner Phillip Phillips. SAUL LOEB/AFP/Getty Images

WASHINGTON, DC - DECEMBER 06: U.S. President Barack Obama speaks after lighting of the National Christmas tree on December 6, 2012 in Washington, D.C. This year is the 90th annual National Christmas Tree Lighting Ceremony. (Photo by Mark Wilson/Getty Images)

WASHINGTON, DC - DECEMBER 6: (AFP OUT) Singer and songwriter Jason Mraz performs at the concert during the 90th National Christmas Tree Lighting Ceremony on the Ellipse behind the White House on December 6, 2012 in Washington, DC. This year is the 90th annual National Christmas Tree Lighting Ceremony. (Photo by Olivier Douliery-Pool/Getty Images)

President Barack Obama, second from right, first lady Michelle Obama, center, Sasha Obama, Malia Obama and Michelle Obama's mother Marian Robinson, left of center, and others participate in the 90th annual National Christmas Tree Lighting ceremony on the Ellipse south of the White House, Thursday, Dec. 6, 2012 in Washington. (AP Photo/Alex Brandon)

Performer James Taylor sings during the 90th annual National Christmas Tree Lighting ceremony on the Ellipse south of the White House, Thursday, Dec. 6, 2012 in Washington. (AP Photo/Alex Brandon)

First lady Michelle Obama, left, and Rico Rodriguez, read "The Night Before Christmas" to children during the 90th annual National Christmas Tree Lighting ceremony on the Ellipse south of the White House, Thursday, Dec. 6, 2012 in Washington. (AP Photo/Alex Brandon)

First lady Michelle Obama and actor Rico Rodriguez (R) read a Christmas carol to children at the official lighting of the National Christmas Tree ceremony on the Ellipse in Washington, December 6, 2012. REUTERS/Larry Downing

Singer Colbie Caillat performs during the National Christmas Tree Lighting on the Ellipse adjacent to the White House in Washington, DC, on December 6, 2012. The annual event, hosted by Actor Neil Patrick Harris, features US President Barack Obama and performances by Jason Mraz, Ledisi, James Taylor, Kenny "Babyface" Edmonds, Colbie Caillat and American Idol season 11 winner Phillip Phillips. SAUL LOEB/AFP/Getty Images

Jason Mraz, left, and Colbie Caillat, sing during the 90th annual National Christmas Tree Lighting ceremony on the Ellipse south of the White House, Thursday, Dec. 6, 2012 in Washington. (AP Photo/Alex Brandon)

Singer Colbie Caillat (R) waves alongside singer Jason Mraz after performing together during the National Christmas Tree Lighting on the Ellipse adjacent to the White House in Washington, DC, on December 6, 2012. The annual event, hosted by Actor Neil Patrick Harris, features US President Barack Obama and performances by Jason Mraz, Ledisi, James Taylor, Kenny "Babyface" Edmonds, Colbie Caillat and American Idol season 11 winner Phillip Phillips. SAUL LOEB/AFP/Getty Images

Singer James Taylor thanks the crowd after singing at the end of the show at the official lighting of the National Christmas Tree ceremony on the Ellipse in Washington, December 6, 2012. REUTERS/Larry Downing