As the final artist at Thursday's FireAid benefit concert, Lady Gaga left her mark by debuting a brand-new song "All I Need Is Time."

FireAid LA brought together a powerhouse lineup at the Kia Forum and Intuit Dome in Inglewood to support relief efforts for the devastating wildfires that have claimed 29 lives and caused billions in damage.

Tate McRae, No Doubt, Katy Perry, Alanis Morissette, Anderson .Paak, Dawes, Graham Nash, John Fogerty, Peso Pluma, Stevie Wonder and the Black Crowes are also set to take the stage for the benefit show,

Rod Stewart, Billie Eilish, the Red Hot Chili Peppers and Lady Gaga are among a star-studded set of musicians performing at a benefit concert later this month for wildfire recovery and relief, organizers announced Thursday.

Stevie Nicks thought her home was gone when she evacuated the Pacific Palisades due to the raging wildfire this month. Instead, firefighters saved her home, and in doing so, likely saved her whole block,

Green Day and Billie Eilish kicked off the massive FireAid benefit concert Thursday night, a two-venue concert extravaganza that is raising money for Los Angeles-area wildfire relief efforts

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, Stevie Wonder, Billie Eilish and more artists are participating in the concert, which is being held to support communities affected by the California wildfires.

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