Billie Eilish, left, performs with Billie Joe Armstrong of Green Day during the FireAid benefit concert Thursday at The Forum ...

Billie Joe Armstrong joined his fellow Green Day members to open FireAid, setting off the nearly six-hour benefit with a ...

The FireAid benefit was fueled by some of music’s best performers to raise money for Los Angeles-area wildfire relief efforts. The event at the Kia Forum and the Intuit Dome in Inglewood, California, ...

The “Shallow” singer closed out the star-studded benefit concert with a song she co-wrote for the show with her fiancé, Michael Polansky.

Two of the evening top-billed acts, Billie Eilish and Green Day, decided to sneak in an onstage duet. As the band geared up to play their beloved 21st Century Breakdown track “Last Night On Earth,” ...

Lady Gaga sang a brand new song, two Billies performed together, and Nirvana reunited (with some special guests).

Check out four unforgettable collaborations that took place during the FireAid benefit concert, including a Stephen Stills-Graham Nash reunion and a duet between Stevie Wonder and Sting.

Billie Joe Armstrong and Billie Eilish. Green Day got things started at the Kia Forum, where they surprised fans with Eilish ...

The members of No Doubt -- Gwen Stefani, Tom Dumont, Tony Kanal and Adrian Young -- reunited at FireAid Thursday night and ...

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 kicked off the massive FireAid benefit concert, a two-venue concert extravaganza that is raising ...