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

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

Katy Perry belted out “California Gurls,” and Joni Mitchell offered a rare performance as Angelenos spoke movingly about loss — and resilience.

FireAid is a star-studded benefit concert organized for Los Angeles-area wildfire relief. It is being produced by Shelli, Irving, and the Azoff family with Live Nation and AEG Presents.

FireAid in Los Angeles inspired a community devastated by wildfires. We take you inside the benefit shows with Lady Gaga, Olivia Rodrigo and more.

FireAid, featuring Billie Eilish, Lady Gaga, Sting, Red Hot Chili Peppers and others in a fundraiser for Los Angeles-area wildfire relief efforts, is the latest event to combine music and philanthropy.

Nearly a year after No Doubt’s triumphant Coachella return following a decade-long hiatus, the Orange County band will reunite ... will also feature sets by Billie Eilish, Lady Gaga, Green ...

The 55-year-old musician confirmed the news by sharing a snapshot of Fire Aid ... Billie Eilish, Green Day, and more. Fans can also look forward to collaborations like Dave Matthews Band teaming ...

Billie Eilish, Red Hot Chili Peppers, and more. Stefani was previously announced to participate and presumably that’s now a No Doubt set, unless this will be a Phil Collins at Live Aid situation.

It will be the band’s first show since playing Coachella ... urging others to join her in donating. Ariana Grande, Billie Eilish and more have reacted to the “heart-wrenching” devastation ...

No Doubt reunited once again to perform at the FireAid, playing "Just a Girl," "Don't Speak," and "Spiderwebs."