In her new WITNESS documentary, Katy Perry talks about meeting Scott, Mitch & Kirstin from Pentatonix on her 4 day long live stream, Witness World Wide.

Buy and Stream Witness:
https://katy.to/witness

Watch the full documentary:
https://smarturl.it/WillYouBeMyWitness

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WITNESS: The Tour tickets available now! https://www.katyperry.com/tour


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A PENTATONIX CHRISTMAS TOUR - 2017 GET YOUR TICKETS AND VIP NOW! http://ptxofficial.com/tour