Christina Aguilera Returns to Sing at Game 7

Is Christina Aguilera a good luck charm? The Los Angeles Lakers are hoping so.

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Pictures: 2010 NBA Finals

Aguilera has been chosen to sing the national anthem for the deciding Game 7 of the NBA Finals. The basketball championship series is tied between the Lakers and the Boston Celtics at three games each.

The Lakers were down 3-2 when Aguilera sang before Tuesday's game at the Staples Center in Los Angeles.

Her latest album is "Bionic."