Parks's association with Australian rock band Silverchair began with his work on their fourth studio album "Diorama" in 2002. Parks was attracted to the music of lead singer and guitarist Daniel Johns and has stated that what most attracted him to the band was Johns' courage. He composed orchestral arrangements for Silverchair's fifth album "Young Modern" album in 2007. Daniel Johns, the band's lead singer, traveled to Prague with Parks to have the arrangements recorded by the Czech Philharmonic Orchestra. The album's title is a nickname Parks uses for Johns.