Demi Lovato Performs Paramore"s "Misery Business" A Capella (VIDEO)

Demi Lovato turned an awkward dead silence into a raucous a capella party after the club she was DJing at ran into some technical difficulties. Demi was on decks Tuesday for Emo Nite LA. Rappers Post Malone and Sirah also held turntable duties…

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