In October 2013 , Teruzane Utada , father of singer Hikaru Utada , stated on Twitter that Hikaru would once again be involved in the theme song for `` Kingdom Hearts III '' , as she did with `` Kingdom Hearts '' and `` Kingdom Hearts II '' .
In October 2013 , Teruzane Utada , the father of singer Hikaru Utada , said that Hikaru would once again be involved in the theme song , as she did with `` Kingdom Hearts '' and `` Kingdom Hearts II '' .