Katy Perry adds second mystery guest to Super Bowl show

Katy Perry has leaked a few more details about her big Super Bowl half-time performance on Sunday (01Feb15), revealing another famous female will be joining her onstage.

In addition to sharing the spotlight with rocker Lenny Kravitz, the Roar singer told reporters at a press conference on Thursday (29Jan15) she has invited another special guest to join her.

She said, "I wanted to bring someone back... (and make it) a real female fun night."

Refusing to name names, Perry simply added the person was "a bit old school", but insisted "jaws will drop and faces will melt when she steps on the stage."

She also joked about her stage set, telling the reporters, "I think I will be the only person in Super Bowl history to bring a lion and a shark to the show."