Rickey Minor, the producer of the Super Bowl Pre-Game show and the music director for Idol, told the AP that Faith Hill's America the Beautiful and Jennifer Hudson's National Anthem was pre-recorded on a track.

From the article:
"The NFL requires them to submit a week before the game. That's the right way to do it...There's too many variables to go live. I would never recommend any artist go live because the slightest glitch would devastate the performance."

Lip-Synching or not, I say "who cares!!!" She pulled it off, sounded great, and looked like a true star. And...um, thank God the track didn't skip, she would've been Humilli-Vanilliated.