Publicado el 11 nov. 2015Own THE PRISMATIC WORLD TOUR LIVE on DVD and Blu-ray from October 30th, featuring the entire concert plus an additional thirty minutes of behind-the-scenes extras. Also available as a Digital Download. See it in PRISM-Vision, just like the audience saw it live! Order now: katyperry.com/PWTL WITNESS: The Tour tickets available now! www.katyperry.com/tour Get “Dark Horse” from 'Prism’: katy.to/prism Follow Katy Perry: www.katyperry.com ruclips.net/user/katyperry katyperry katyperry katyperry Music video by Katy Perry performing Dark Horse. (C) 2015 Perry Productions LLC, exclusively licensed to Eagle Rock Entertainment Ltd. vev...