The "Firework" singer added some sparks to ESPN's College GameDay Saturday morning. Broadcast live from the University of Mississippi campus, Perry joined host Chris Fowler and analysts Kirk Herbstreit, Lee Corso and Desmond Howard for plenty of sports talk.
"OXFORD MISSISSIPPI I'M HERE WITH REBEL RED HAIR TODAY!" Perry tweeted on-set. "ARE YOU READY?! @CollegeGameDay #GetUp4GameDay"