Mariah Carey sings before President Barack Obama at Christmas event

Slideshow posted in Entertainment News | Monday, December 13, 2010

8 of 18: The first family, from left, President Barack Obama, Sasha Obama, obscured, first lady Michelle Obama, and the first lady's mother Marian Robinson pose children dressed like elves at the National Building Museum in Washington Sunday, Dec. 12, 2010. The first family is attending the taping of the 2010 Christmas in Washington. (AP Photo / Manuel Balce Ceneta)

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