Billie Eilish, Dr. Dre, Stevie Wonder, Green Day, Joni Mitchell, No Doubt and the remaining members of Nirvana all performed.

Check out four unforgettable collaborations that took place during the FireAid benefit concert, including a Stephen Stills-Graham Nash reunion and a duet between Stevie Wonder and Sting.

Billie Joe Armstrong and Billie Eilish. Green Day got things started at the Kia Forum, where they surprised fans with Eilish ...

The 67th Grammy Awards will feature a star-studded tribute to Quincy Jones, led by Stevie Wonder and Janelle Monáe, on ...

The members of No Doubt -- Gwen Stefani, Tom Dumont, Tony Kanal and Adrian Young -- reunited at FireAid Thursday night and ...

Featuring a Nirvana reunion, a surprise appearance by Dr. Dre and a stirring performance of 'Both Sides Now' by Joni Mitchell ...

Billie Eilish sang with Green Day and Stevie Nicks thanked the firefighters who saved her home at two star-studded concerts ...

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

While the fires are largely contained now, the road to recovery for many is only now just beginning. World of music came ...

The star-studded FireAid benefit concert in Los Angeles featured artists such as Billie Eilish, Stevie Wonder, Jelly Roll and Olivia Rodrigo.

Sting, Billie Eilish, Rod Stewart, Stevie Wonder and Lady Gaga were among a host of A-list headliners taking part in a ...