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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)

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.