Own 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: http://katyperry.com/PWTL Get “Dark Horse” from 'Prism’: http://smarturl.it/Prism
Music video by Katy Perry performing Dark Horse. (C) 2015 Perry Productions LLC, exclusively licensed to Eagle Rock Entertainment Ltd.
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Katheryn Elizabeth "Katy" Hudson (born October 25, 1984), better known by her stage name Katy...