FireAid, a star-studded benefit concert raised millions for LA wildfire victims. The event featured emotional performances, including a surprise Nirvana reunion, Lady Gaga debuting a new song, and Billy Crystal hosting with humor.

Between performances, survivors of the LA wildfire, which has killed 28 people, shared their experiences of losing their homes.

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

Billie Eilish made a surprise appearance during Green Day's set at the FireAid benefit concert on Thursday night. The star-studded gigs were held simultaneously at the Intuit Dome and Kia Forum in Inglewood,

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.

Sting, Billie Eilish, Rod Stewart, Stevie Wonder and Lady Gaga were among a host of A-list headliners taking part in a benefit concert for victims of the recent devastating LA wildfires on Thursday.

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,

Two major fires in and around Los Angeles are burning for a third week, destroying more than 14,000 structures and displacing tens of thousands.In the midst of

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

Billie Eilish hit the stage with Green Day, John Fogerty joined The Black Crowes and Crosby, Stills and Nash stars Stephen Stills and Graham Nash reunited for a rare performance together at the FireAid concerts in Los Angeles on Thursday night (30.

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