, ▁" A cap ella " ▁became ▁their ▁third ▁single ▁to ▁chart ▁on ▁the ▁US ▁Billboard ▁Hot ▁ 1 0 0 , ▁reaching ▁number ▁sevent y - two . ▁It ▁has ▁Be en ▁Cert ified ▁ 3 x ▁plat in um ▁in ▁Australia ▁for ▁s elling ▁ 1 4 0 , 0 0 0 ▁Cop ies ▁there . ▁ ▁Live ▁performances ▁Kar min ▁first ▁performed ▁the ▁song ▁live ▁in ▁an ▁ac oust ic ▁setting ▁for ▁Ryan ▁Se ac rest ' s ▁Pick ▁Your ▁Pur se ▁party ▁in ▁late ▁June ▁ 2 0 1 3 . ▁On ▁July ▁ 1 0 , ▁ 2 0 1 3 , ▁the ▁du o ▁performed ▁the ▁song ▁on ▁Jimmy ▁K imm el ▁Live !, ▁along ▁with ▁several ▁other ▁songs ▁to ▁be ▁featured ▁on ▁their ▁up coming ▁debut ▁album ▁P uls es . ▁They ▁also ▁performed ▁the ▁song ▁on ▁ 2 nd ▁Indones ian ▁Cho ice ▁Awards . ▁ ▁Music ▁video ▁ ▁The ▁music ▁video ▁for ▁" A cap ella " ▁was ▁directed ▁by ▁Matt ▁St aw ski , ▁while ▁cre ative ▁direction ▁and ▁ch ore ography ▁was ▁handled ▁by ▁Richard ▁" Rich y ▁S qu ir rel " ▁Jackson . ▁Fil ming ▁took ▁place ▁in ▁early ▁June ▁ 2 0 1 3 . ▁The ▁treatment ▁for ▁the ▁video ▁was ▁written ▁by ▁band ▁member ▁Amy ▁He ide mann . ▁The ▁visual s ▁of ▁the ▁music ▁video ▁were ▁inspired ▁by ▁ 9 0 ' s ▁music ▁videos ▁the ▁group ▁grew ▁up ▁watching , ▁mostly ▁drawn ▁from ▁director ▁H ype