Billie Eilish joined Green Day on 'Last Night on Earth' to kick off the FireAid concerts in Los Angeles to benefit wildfire ...

Billie Eilish has joined Green Day onstage at the FireAid Benefit Concert. Watch their performance of “Last Night on Earth.” ...

Green Day and Billie Eilish provided a perfect answer ... In an amusingly appropriate pairing, after the band’s Billie Joe Armstrong sang the first verse of that song, “Last Night on Earth ...