Take that haters!  On a mission to prove she CAN actually sing the National Anthem live, Beyonce used her time at today's NFL press conference to give 'The Star-Spangled Banner' a go again.

Of course she can sing LIVE people!  She's proving it!


According to TMZ.com, Beyonce was questioned today during a pre-Super Bowl media event about lip-syncing at the Presidential Inauguration last week, and she admitted to relying on a pre-recorded backing track -- claiming:

"I am a perfectionist ... I did not have time to rehearse with the orchestra [at the Inauguration]. It was a live television show and a very important moment for me."