And Karen O, lead singer of the Yeah Yeah Yeahs, was brought in to create a series of kidlike pop songs for the soundtrack. "In my other movies, I'd worked with actors like John Malkovich, Meryl Streep, Nicolas Cage - and I expected the same level of performance from both Max and the Wild Things that I had from all my other actors" Jonze says. Even from a kid actor, and from guys lumbering around in big, furry costumes.
Full Article at Philadelphia Inquirer