Billie Eilish hit the stage with Green Day to kick off the FireAid concerts in Los Angeles on Thursday night (30.01.25). Stars from across the music industry came together for double-venue event - at the Inuit Dome and Kia Forum- to raise funds for victims of the California wildfires which claimed the lives of at least 20 people and destroyed thousands of buildings across the state and Green Day were the first to take to the stage at the Kia Forum and they brought out pop star Billie as a special guest.