Beyoncé got straight to business at a press conference Thursday to discuss her upcoming performance at the Super Bowl. Outfitted in a form-fitting little white dress and killer pumps, the singer politely asked the crowd to stand before launching into a pitch-perfect rendition of the "Star-Spangled Banner." After the applause died down, she giggled and asked, "Any questions?"

It was a sassy response to the flurry of indignation that came about after a Marine Band spokesperson revealed the singer had performed to pre-recorded vocals at President Obama's inaugural ceremony on January 21. Knowles clarified that she did indeed use a backing track, but that she had a very good reason: She was too busy rehearsing for the upcoming Super Bowl to rehearse with the band.
"I am a perfectionist. One thing about me, I practice until my feet bleed," Knowles admitted. "I did not have time to rehearse with the orchestra. It was a live television show. It was a very important emotional show for me, one of my proudest moments."
The singer explained that she never had time for a proper sound check, and couldn't take her chances. "I did not feel comfortable taking a risk. It was about the President, the Inauguration. I wanted to make him and my country proud, so I decided to sing along to my pre-recorded track, which is very common in the music industry."
Knowles assured the crowd that she would indeed sing live during the Super Bowl halftime performance, noting, "This is what I was born to do."
While she was cagey about rumors of a Destiny's Child reunion (oh, it's totally happening), Knowles did admit that there's a special announcement coming up right after the performance. Asked if she planned to go on tour in the near future, she slyly responded, "I would say soon, and I may have an announcement after the performance. The fans should just stay tuned to see."
Source: zimbio