▁lead ▁vocals ▁in ▁a ▁performance ▁of ▁" D og ▁Days ▁Are ▁Over ", ▁and ▁Rach el ▁and ▁Finn ▁took ▁the ▁leads ▁in ▁" Sing ", ▁with ▁the ▁full ▁cast ▁remaining ▁on ▁stage ▁for ▁both ▁songs . ▁There ▁were ▁then ▁smaller ▁group / sol o ▁performances , ▁including ▁" F at ▁B ottom ed ▁Girls " ▁by ▁P uck ▁which ▁began ▁with ▁the ▁first ▁vent ure ▁onto ▁the ▁second ▁stage ▁at ▁the ▁back ▁of ▁the ▁ar ena ▁with ▁Finn ▁accomp any ing ▁on ▁the ▁drum - kit , ▁and ▁a ▁lip - syn ced ▁performance ▁of ▁" I ' m ▁a ▁S lave ▁ 4 ▁U " ▁from ▁Brit t any . ▁The ▁set ▁was ▁preced ed ▁by ▁a ▁conversation ▁between ▁the ▁character ▁of ▁Brit t any ▁and ▁Mr . ▁Sch u ester , ▁with ▁the ▁latter ▁performing ▁via ▁a ▁pre - record ed ▁video . ▁This ▁conversation ▁was ▁mostly ▁d rown ed ▁out ▁by ▁laugh ter ▁from ▁the ▁crowd . ▁ ▁The ▁whole ▁cast ▁then ▁came ▁back ▁together ▁to ▁perform ▁" B orn ▁This ▁Way ", ▁including ▁all ▁their ▁original ▁episode ▁T - sh ir ts ▁( a ▁number ▁of ▁which ▁were ▁also ▁made ▁for ▁sale ▁at ▁the ▁mer ch and ising ▁st alls ). ▁Rach el ▁then ▁performed ▁" Fire work ", ▁before ▁a ▁video ▁inter l ude ▁from ▁Sue ▁introduced ▁the ▁War bl ers , ▁who ▁began ▁a ▁three - song ▁set ▁with ▁" Te en age ▁Dream " ▁on ▁the ▁second ▁stage . ▁The ▁setting ▁of ▁the ▁New ▁Dire ctions