Honestly, i'm 90% sure it's Gaga bc if it's not her, who would it be out of the pop girls?
Taylor have a Coke contract and it's on her break, maybe she can play there (i can totally see this happening) someday but i don't think she's doing now.
Adele already said no.
Britney said she wouldn't do it by herself, only if she had other artists with her.
Rihanna would be a good pick but idk if she cares enough to make that show. She's like "**** it i don't care" and the Superbowl is like a huge responsability.
JLo or Shakira are good choices too and i would be totally happy with one of them performing but i don't think NFL will pick one of them.
It's probably Gaga or a boring male singer/boring band that ATRL doesn't care about.
Drake

He's so ****ing boring. Ok, he have hits but there's no way he can make a PERFORMANCE. Especially for the ****ing halftime show. No one wants to see him walking from the left to the right singing his midtempo songs. He's successful but even Justin Bieber would've been a better choice.
Y'all can drag Gaga but y'all damn know she can make a decent/amazing performance because she's talented. Also, she have enough hits for that, and that's why NFL have interest on her.
Wendy is a joke tho. Anything for the ratings i guess?