The "Hottest 100" is an annual music countdown organized by Triple J, an Australian radio station. It features the most popular songs of the previous year, as voted by listeners. The event typically takes place on Australia Day, January 26, and showcases a diverse range of genres and artists. Listeners can cast their votes online, selecting their favorite tracks from a predetermined list. The countdown has become a significant cultural event in Australia, attracting a large audience and celebrating both mainstream and independent music. It highlights the evolving tastes of the Australian music scene.