Skrillex co-wrote the opening theme song for Kingdom Hearts 3 Skrillex is wetting his whistle in the video game realm, as he's been charged with creating a new theme for 'Kingdom Hearts 3.' Related Posts: Skrillex’s studio sessions with Ty Dolla $ign, From First to Last, and more confirmed Skrillex and Hikaru Utada team up for Kindgom Hearts III Theme Song
