▁at ▁number ▁ 3 9 , ▁where ▁Black p ink ▁became ▁the ▁first ▁K - pop ▁girl ▁group ▁to ▁chart ▁a ▁title . ▁The ▁single ▁also ▁sat ▁at op ▁Billboard ▁World ▁Digital ▁Songs , ▁making ▁it ▁the ▁group ' s ▁fourth ▁number ▁one ▁song ▁on ▁the ▁chart . ▁Square ▁Up ▁also ▁brought ▁the ▁group ▁their ▁first ▁entry ▁on ▁the ▁US ▁Billboard ▁ 2 0 0 , ▁debut ing ▁at ▁number ▁ 4 0 ▁with ▁ 1 4 , 0 0 0 ▁album - equ ivalent ▁units . ▁The ▁mini ▁album ▁also ▁to pped ▁the ▁Billboard ▁World ▁Albums ▁chart . ▁ ▁In ▁South ▁Korea , ▁the ▁mini ▁album ▁deb uted ▁at ▁number ▁one ▁on ▁Ga on ▁Albums ▁Chart . ▁While ▁“ D du - D u ▁D du - D u ” ▁deb uted ▁at ▁number ▁ 3 ▁on ▁the ▁Ga on ▁Digital ▁Chart ▁and ▁at ▁number ▁one ▁on ▁the ▁Ga on ▁Download ▁Chart ▁on ▁the ▁chart ▁issue ▁dated ▁June ▁ 1 0 – 1 6 , ▁ 2 0 1 8 ▁with ▁ 3 1 , 0 7 2 , 0 4 9 ▁digital ▁points . ▁In ▁its ▁second ▁week , ▁" D du - D u ▁D du - D u " ▁pe aked ▁at ▁number ▁one ▁on ▁Digital , ▁Download , ▁Stream ing , ▁and ▁Mobile ▁Ch arts ▁on ▁Ga on ▁with ▁ 8 5 , 4 1 1 , 4 6 7 ▁digital ▁points . ▁ ▁As ▁of ▁May ▁ 2 3 , ▁ 2 0 1 9 , ▁the