Sept. 28 (UPI) -- Katy Perry gives fans an inside look into how she created her four-day Witness Worldwide live-stream in the first trailer for upcoming YouTube Red documentary, Will You Be My Witness?.
The clip, released Wednesday, features the pop star planning the massive live-stream event to promote her latest album Witness by living inside a newly constructed home that was filming her for 24 hours from June 8-12.