▁performed ▁a ▁live ▁concert ▁in ▁Las ▁Veg as ▁called ▁One ▁Night ▁Only . ▁The ▁show ▁included ▁a ▁performance ▁of ▁" O ur ▁Love ▁( Don ' t ▁Th row ▁It ▁All ▁A way )" ▁synchron ised ▁with ▁a ▁vocal ▁by ▁their ▁dece ased ▁brother ▁Andy ▁and ▁a ▁came o ▁appearance ▁by ▁C eline ▁D ion ▁singing ▁" Im mort ality ". ▁The ▁CD ▁of ▁the ▁performance ▁sold ▁over ▁ 5 ▁million ▁copies . ▁The ▁" One ▁Night ▁Only " ▁name ▁grew ▁out ▁of ▁the ▁band ' s ▁declaration ▁that , ▁due ▁to ▁Barry ' s ▁health ▁issues , ▁the ▁Las ▁Veg as ▁show ▁was ▁to ▁be ▁the ▁final ▁live ▁performance ▁of ▁their ▁career . ▁After ▁the ▁imm ens ely ▁positive ▁audience ▁response ▁to ▁the ▁Veg as ▁concert , ▁Barry ▁decided ▁to ▁continue ▁despite ▁the ▁pain , ▁and ▁the ▁concert ▁expanded ▁into ▁their ▁last ▁full - b low n ▁world ▁tour ▁of ▁" One ▁Night ▁Only " ▁concert s . ▁The ▁tour ▁included ▁playing ▁to ▁ 5 6 , 0 0 0 ▁people ▁at ▁London ' s ▁W emble y ▁Stadium ▁on ▁ 5 ▁September ▁ 1 9 9 8 ▁and ▁concluded ▁in ▁the ▁newly ▁built ▁Olympic ▁Stadium ▁in ▁Sydney , ▁Australia ▁on ▁ 2 7 ▁March ▁ 1 9 9 9 ▁to ▁ 7 2 , 0 0 0 ▁people . ▁ ▁In ▁ 1 9 9 8 , ▁the ▁group ' s ▁sound track ▁for ▁Saturday ▁Night ▁F ever ▁was ▁incorpor ated ▁into ▁a ▁stage ▁production ▁produced ▁first ▁in ▁the ▁West ▁End