Billie Eilish, Dr. Dre, Stevie Wonder, Green Day, Joni Mitchell, No Doubt and the remaining members of Nirvana all performed.

Lady Gaga is known as Mother Monster to her adoring fans, but her latest outfit would work well for a matriarch of some chic coven. Or someone on their way to a late-night party at Berghain.

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

Take a look at some of the most special moments from FireAid below. Remaining Nirvana members reunited with special guests.

FireAid brought together artists from musical generations and genres to help raise money for Los Angeles-area wildfire relief ...

U2, whose members include Bono and the Edge, committed during the event to donating $1 million to the relief efforts. Steve ...

The FireAid benefit was fueled by some of music’s best performers to raise money for Los Angeles-area wildfire relief efforts ...

After joining Green Day for their FireAid-opening set at the Kia Forum earlier Thursday night (Jan. 30), Billie Eilish took ...

Red Hot Chili Peppers were the last to take the stage at the Kia Forum at the FireAid benefit show for Los Angeles wildfire ...

Follow live updates on the FireAid benefit concert, which will feature performances from Billie Eilish, Lady Gaga and more, as they raise money for Los Angeles-area wildfire victims.