It would be the worst half time of all time the gifs of her dancing the audio of her vocals the media attacking her for her repetitive over sexed choreo
Gaga doesn't have the discography for it to be honest.
Hunny please. I think it's too early for Gaga too but not for those reasons.
Just Dance + Poker Face + Bad Romance + Lovegame + perhaps Telephone and/or Alejandro + Born This Way + The Edge Of Glory and maybe You & I for the rednecks that watch football... that's plenty of epic content to fill a 12 minute set.
Of course she could, and i can't wait to see your reactions when this will happen. She surely won't be lazy and she would take time to prepare and to give a damn good performance.