Dubbed Karen O and the Kids, the kids include Tristan Bechet (Services), Tom Biller (co-producer with Karen O and member of Afternoons), Bradford Cox (Deerhunter), Brian Chase (YYY), Dean Fertita (The Dead Weather), Aaron Hemphill (Liars), Greg Kurstin (The Bird and the Bee), Jack Lawrence (The Dead Weather), Oscar Michel (Gris Gris), Imaad Wasif (New Folk Implosion), Nick Zinner, (YYY) and an untrained children's choir.

With a screenplay co-written by Jonze and author Dave Eggers, Where the Wild Things Are, is ultimately a story about the places we go to figure out the world we live in - with a soundtrack that encompasses all levels of childhood antics.