The members of No Doubt -- Gwen Stefani, Tom Dumont, Tony Kanal and Adrian Young -- reunited at FireAid Thursday night and sang some of their biggest hits, including "Just a Girl," "Spiderwebs" and "Don't Speak."

Lady Gaga closed the FireAid concert in Los Angeles with a live performance of her hit "Shallow" and a brand new song written for the occasion.

Spanning multiple hours, the show saw legends like Stevie Nicks, Stevie Wonder, Joni Mitchell and more, while also bringing out newer artists, like Olivia Rodrigo, Gracie Abrams and others. Even former vice president Kamala Harris and her husband were in attendance at the event.