The singer-songwriting performed her hit "I Love You, I'm Sorry" before giving her own interpretation of a Counting Crows classic.

P!nk, Joni Mitchell, and Lady Gaga were just a few of the highlights in a night that also featured a No Doubt reunion and the surviving Nirvana members

LOS ANGELES (Reuters) -Billie Eilish sang with Green Day and Stevie Nicks thanked the firefighters who saved her home at two star-studded concerts on Thursday to raise money for wildfire relief in Los Angeles.

Two concerts collectively being referred to as FireAid kicked off at the Kia Forum and the Intuit Dome in the Los Angeles city of Inglewood to support relief efforts in the wake of the deadly wildfires that ignited earlier this month in the LA area, claiming 29 lives and causing billions of dollars in damage.

St. Vincent performs with Krist Novoselic of Nirvana onstage during the FireAid Benefit Concert for California Fire Relief. (John Shearer/Getty Images for FireAid)

Some of the biggest names in music are coming together to support Southern California with the FireAir benefit concert. Here’s how you can watch.

Billie Eilish made a surprise appearance on stage with Green Day on Thursday to kick off one of two star-studded concerts in Los Angeles put together to raise funds for people affected by deadly wildfires in California this month.

Lady Gaga closed the FireAid benefit concert with a heartfelt new song she co-wrote with her fiancé, Michael Polansky, to bring hope to those affected by the LA wildfires.

Some of the biggest names in music will come together on Thursday to raise money for Los Angeles-area wildfire relief efforts.

Mikael Wood and August Brown are at Inglewood's Intuit Dome and Kia Forum for the FireAid benefit concerts starring Billie Eilish, Lady Gaga, Green Day and Stevie Wonder, among many others.

The first of two concerts collectively being referred to as FireAid will soon kick off at the Kia Forum in the Los Angeles city of Inglewood, to support relief efforts in the wake of the deadly wildfires that ignited earlier this month in the LA area,

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.