jack et ▁serve ▁as ▁free ▁advert ising ▁for ▁various ▁products ▁from ▁ice cre am ▁to ▁mov ies ▁and ▁musical s . ▁Mr . ▁Children ▁have ▁used ▁this ▁method ▁to ▁promote ▁singles ▁and ▁albums ; ▁for ▁example ▁ ▁and ▁I ▁Love ▁U ▁( I ♥ U ). ▁ ▁F an ▁club ▁The ▁official ▁fan ▁club ▁of ▁Mr . ▁Children ▁is ▁called ▁Father ▁& ▁Mother , ▁the ▁title ▁being ▁derived ▁from ▁their ▁name . ▁ ▁The ▁fan ▁club , ▁which ▁started ▁in ▁ 1 9 9 4 , ▁was ▁kept ▁relatively ▁secret ive ▁at ▁first , ▁as ▁the ▁group ▁has ▁never ▁made ▁any ▁mention ▁of ▁it ▁on ▁their ▁official ▁website . ▁In ▁ 2 0 0 6 , ▁for ▁the ▁release ▁of ▁the ▁group ' s ▁ 2 9 th ▁single ▁" Sh ir ush i ", ▁the ▁official ▁website ▁was ▁rev amp ed ▁and ▁with ▁it ▁information ▁about ▁the ▁fan ▁club ▁was ▁finally ▁added . ▁Just ▁like ▁before ▁however , ▁the ▁fan ▁club ▁can ▁only ▁be ▁joined ▁by ▁mail ▁and ▁requires ▁an ▁ad mission ▁fee ▁of ▁ 3 , 5 0 0 ▁y en , ▁with ▁year ly ▁re - app lications ▁for ▁membership . ▁ ▁Band ▁members ▁▁ ▁Current ▁members ▁ ▁Kaz utos hi ▁Sak ur ai ▁– ▁lead ▁vocals , ▁guitar , ▁primary ▁song writer ▁ ▁Ken ichi ▁T ah ara ▁– ▁guitar , ▁backing ▁vocals ▁He ▁was ▁born ▁in ▁Fu ku oka ▁and ▁is ▁charge ▁of ▁playing ▁guitar ▁in ▁the ▁band . ▁He ▁had ▁joined ▁the ▁baseball ▁team ▁in ▁high ▁school