Summary:How much do you know about Katy Perry? Do you know it all? Test yourself on questions from four categories. At it tracks your high scores so you can try to beat your best.
And you can follow Katy's music, YouTube, and Twitter from within the app.
Know It All Apps
Miscellaneous, Rhythm, Music
Designer/Producer/Programmer credits provided by GameFAQs.
If you contributed to this game and feel you should be
credited, please read our