BEYONCE Knowles disappointed by lip-sync reaction

BEYONCE Knowles is said to be disappointed by the reaction to her performance of the American national anthem at Barack Obama's inauguration on Monday.

A source said Beyonce feels "a technicality which everybody does took away from the beauty of the moment."

"She didn't think there was anything wrong with it. Pavarotti has done it! It was freezing out, and if she messed up just one note, that would have been the story," said the source.

"Everybody uses these tracks, and the music director advised it. Any big outdoor live performance is almost always with some kind of track.

"She did sing, but used a track."