Katy Perry: Will You Be My Witness? 2017

In her new YouTube Red Original Movie, the colorful pop icon puts her life on camera 24/7 for four whole days, in her most intimate reveal yet. Join Katy as she does behind-the-scenes in the creation and aftermath of this unprecedented live-streaming event with friends, artists and celebrity guests.

Cast:

James Corden
Himself 

America Ferrera
Herself 

Anna Kendrick
Herself 

Sia
Herself 

RuPaul
Himself 

Mario López
Himself