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Mariah Carey sings before President Barack Obama at Christmas event

Singer Mariah Carey performs during the Annual Christmas in Washington presentation at the National Building Museum in Washington, Sunday, Dec. 12, 2010. Watching at the back is actress Miranda Cosgrove. <span class=meta>(AP Photo / Manuel Balce Ceneta)</span>
December 25, 2010 12:43:05 AM PST