▁line - up ▁of ▁L ester ▁Square ▁( gu itar ), ▁Andy ▁Warren ▁( b ass ▁guitar ) ▁and ▁Paul ▁Fl ann agan ▁( d rum s ). ▁L ester ▁Square ▁left ▁to ▁finish ▁his ▁course ▁at ▁an ▁art ▁school ▁( and ▁later ▁formed ▁The ▁Mon och rome ▁Set ) ▁just ▁days ▁after ▁The ▁An ts ▁played ▁their ▁first ▁gig ▁on ▁ 5 ▁May ▁ 1 9 7 7 , ▁at ▁a ▁bed room ▁in ▁Mus well ▁Hill . ▁Mark ▁Ryan ▁replaced ▁him ▁on ▁guitar ▁and ▁played ▁the ▁first ▁formal ▁gig s ▁( start ing ▁with ▁a ▁performance ▁at ▁the ▁I CA ▁in ▁London ▁on ▁ 1 0 ▁May ▁ 1 9 7 7 ). ▁In ▁early ▁June , ▁Fl ann agan ▁was ▁replaced ▁with ▁Dave ▁Bar bar ossa ▁( also ▁known ▁as ▁Dave ▁Bar be ) ▁and ▁the ▁resulting ▁line - up ▁recorded ▁" Pl astic ▁S urg ery " ▁( al ong ▁with ▁seven ▁other ▁un re leased ▁dem os ▁later ▁dub bed ▁the ▁" J ub ile e ▁Dem os " ▁by ▁boot leg gers ) ▁and ▁featured ▁in ▁the ▁film ▁J ub ile e ▁as ▁the ▁band ▁of ▁Adam ' s ▁character ▁Kid , ▁until ▁Ryan ▁was ▁replaced ▁by ▁Johnny ▁B iv ou ac ▁in ▁October ▁ 1 9 7 7 . ▁Short ly ▁after ▁this , ▁the ▁group ▁adopted ▁the ▁longer ▁Adam ▁and ▁the ▁An ts ▁band name . ▁ ▁Early ▁record ings ▁The ▁band ▁made ▁their ▁radio ▁debut ▁on ▁the ▁John ▁Pe el ▁show ▁with ▁a ▁session