NEW ORLEANS -- Beyonce says she did lip sync when she performed the national anthem on Inauguration Day.

The singer held a press conference Thursday in New Orleans days ahead of her half-time performance at the Super Bowl.

She said she's a "perfectionist" and wanted her performance for President Barack Obama to be a memorable one. She called the day "emotional."

Beyonce opened the press conference with a live rendition of the national anthem.

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