Katy, 30, has already started rehearsals and choreography with her snappy dancers and is planning some outlandish costumes for the February set.
After landing the biggest gig of her career – snagging the coveted Super Bowl half-time show – Katy Perry is pulling out all the stops to make sure that it’s her best yet.
Our insider tells us: “Katy is a huge fan of Pharrell and knows that having him duet with her on one of her songs during her performance will make all the difference.
"Her people are already in early talks with his people about setting it all up.
“He is tempted as he knows it will be an amazing, slick, professional show.
“He is trying to work out how it will fit in around his own branding and commitments. But he is also touring in the summer so he knows that it will be great publicity for him too.”
I wish Birthday had been a bigger hit. A Birthday/Get Lucky mash-up would have been cool since they both have disco influences and they're both kind of sexual.