Pres. Obama lights up National Christmas tree

U.S. President Obama, first lady and their daughters Malia and Sasha participated in lighting the National Christmas tree in front of White House in Washington on Dec. 6.

President Obama And Family Attend Nat'l Christmas Tree Lighting

WASHINGTON, DC - DECEMBER 06: U.S. President Barack Obama, sings a Christmas song with his daughters Malia (3rd-L) and Sasha (2nd-L), first lady Michelle Obama (L), Actor Neil Patrick Harris (2nd-R), and Rico Rodriguez (R),during the annual lighting of the National Christmas tree on December 6, 2012 in Washington, DC. This year is the 90th annual National Christmas Tree Lighting Ceremony. (Photo by Mark Wilson/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)

President Barack Obama, first lady Michelle Obama and their daughters Sasha and Malia, sing during the 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)

President Obama And Family Attend Nat'l Christmas Tree Lighting

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)

President Obama And Family Attend Nat'l Christmas Tree Lighting

WASHINGTON, DC - DECEMBER 06: U.S. President Barack Obama (L), stands with his daughters Sasha and Malia Obama, and mother-in-law Marion Robinson after lighting of the National Christmas tree on December 6, 2012 in Washington, DC. This year is the 90th annual National Christmas Tree Lighting Ceremony. (Photo by Mark Wilson/Getty Images)

The Fray performs 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, 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)