Good for her, that's amazing! The Superbowl is one of the biggest promotional opportunities an artist can get, and her and her label are handling it perfectly already. Smart move teaming up with iTunes and discounting/promoting on there. And it will go up more after the Superbowl.
Jesus. People are paying $$$ to see the game, not her show.
her show is part of the Super Bowl, get over it... her music is selling even before the show so that proves there IS hype, and the GP is here for her performance.