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

In a night full of surprises, a reunion of Nirvana — fronted by St. Vincent, Kim Gordon and Joan Jett in the place of the late Kurt Cobain — topped the list.

The all-star FireAid benefit in Los Angeles began with Green Day and Billie Eilish teaming up for the 'American Idiot' deep cut "Last Night on Earth." ...

Musician Alanis Morissette and rock singer Rod Stewart took to the stage with other big names like Green Day, Billie Eilish, ...

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.

Billie Eilish and Finneas performed acoustic renditions of "Wildflower," "The Greatest," and "Birds of a Feather" at FireAid.

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.

Billie Eilish and Finneas, Olivia Rodrigo, Earth, Wind & Fire, Gracie Abrams, Green Day, Jelly Roll, Joni Mitchell, Katy ...