Katy Perry was one of the best 'GameDay' guests of all time — ALL TIME!

Katy Perry was the perfect GameDay guest. ;-) She bought a corn dog!

She even made better picks than Lee Corso.

Reminder: Guest picker Katy Perry called BOTH the Mississippi State and Ole Miss upsets on @CollegeGameDay today. pic.twitter.com/VjrtemQ3fW

— SportsCenter (@SportsCenter) October 4, 2014

At the game, she hugged a bear!

And did the whole football screaming thing.

(Photo via Getty Images)

Then she went out on the town.

And even hung out with the Rebelettes. Are you ready for it? She was!

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