Audiences tuning into the FireAid benefit concert for Los Angeles on Thursday night (Jan. 30) were surprised with an early treat when pop superstar Billie Eilish made a surprise appearance alongside Billie Joe Armstrong and the rest of Green Day for a stirring opening performance.

Billie Eilish, Lady Gaga, Lil Baby, Jelly Roll, Tate McRae, Gwen Stefani and the rock band U2 are set to perform at the upcoming benefit concert in the wake of the devastating Los Angeles wildfires, The Hollywood Reporter has learned.

Billie Eilish, Lil Baby, and more are set to participate in FireAid concerts in LA to raise money for those affected by the wildfires.