WASHINGTON (CBS) -- Beyonce's national anthem performance at President Obama's inauguration has some asking the question, was it live or was it recorded after accusations she used a pre-recorded voice track for her song.
Beyonce took the stage at President Obama's inauguration this week and delivered what many called a memorable performance. But now there are reports her singing wasn't what everyone thought.
The controversy erupted started Tuesday when a spokeswoman for the Marine Corps Band said the singer used a pre-record voice track instead of singing live. The Marines later backed off that statement saying: "No one in the Marine Band is in a position to assess whether it was live or pre-recorded."
Sources tell CBS News Beyonce did sing and her mic was hot, but that she was matching her voice to a pre-recorded track.
It's not uncommon to pre-record inaugural music in case of bad weather or other unexpected circumstances. But temperatures here were mild on inauguration day and the skies were clear.
It was a much colder day four years ago when cellist Yo Yo Ma and violinist Itzhak Perlman used pre-recorded music at President Obama's first inauguration. And Whitney Houston lip synced her famous rendition of the National Anthem before the 1991 Super Bowl.
No doubt Beyonce's fans will be listening and watching closely when she performs at halftime at this year's Super Bowl.
Beyonce's representatives have not yet responded to requests for comments.