On April 30, 2024 Double J will turn 10. There'll be celebrations all through the next year with new and familiar faces and Missy Higgins as Artist in On April 30, 2024 Double J will turn 10. There'll be celebrations all through the next year with new and familiar faces and Missy Higgins as Artist in Residence in February, as she marks 20 years since the release of her debut album The Sound of White.