Rapper Missy Elliott will join Katy Perry for her Super Bowl half-time performance in Arizona on Sunday (01Feb15), according to reports.

Perry announced she had invited an "old school" star to hit the stage with her and Lenny Kravitz, telling reporters on Thursday (29Jan15) the sight of her mystery guest would make jaws drop and faces melt.

She refused to name names, but now sources claim Elliott is the unnamed performer.

It's not clear what the Get Ur Freak On hitmaker will do with Perry at the University of Phoenix stadium in Glendale on Sunday.