" ▁used ▁to ▁promote ▁. ▁The ▁single ▁was ▁a ▁hit ▁and ▁became ▁Mr . Children ' s ▁best ▁s elling ▁single ▁since ▁ 2 0 0 1 ' s ▁" Y outh ful ▁Days " ▁single . ▁▁ 2 0 0 4 – 2 0 0 6 ▁In ▁ 2 0 0 4 , ▁Sak ur ai ▁started ▁a ▁solo ▁project ▁titled ▁Bank ▁Band , ▁which ▁became ▁a ▁spin - off ▁of ▁AP ▁Bank . ▁As ▁Bank ▁Band , ▁Sak ur ai ▁released ▁a ▁first ▁album , ▁titled ▁, ▁which ▁contained ▁covers ▁of ▁two ▁Mr . ▁Children ▁songs , ▁" H ero " ▁and ▁" Y as ash ii ▁U ta ". ▁Mr . ▁Children ▁released ▁their ▁ele vent h ▁album ▁on ▁April ▁ 4 , ▁ 2 0 0 4 , ▁titled ▁, ▁which ▁came ▁with ▁a ▁document ary ▁DVD ▁showing ▁the ▁group ▁working ▁and ▁talking ▁about ▁the ▁concept ▁behind ▁the ▁album . ▁To ▁help ▁promote ▁the ▁album , ▁Mr . ▁Children ▁used ▁the ▁song ▁ ▁in ▁' N iss in ▁Cup ▁No od le ▁– ▁NO ▁Border ' ▁commer ci als ▁and ▁as ▁the ▁' News ▁ 2 3 ' ▁theme ▁song . ▁According ▁to ▁Sak ur ai , ▁ ▁is ▁ ▁In ▁the ▁following ▁month , ▁they ▁released ▁their ▁ 2 6 th ▁single , ▁" Sign ", ▁on ▁May ▁ 2 6 , ▁which ▁was ▁used ▁as ▁the ▁theme ▁song ▁to ▁the ▁Japanese ▁drama ▁Orange ▁Days ▁and ▁went ▁on ▁to ▁win ▁the ▁Song ▁of ▁the ▁Year ▁award ▁at ▁the