The singer-songwriting performed her hit "I Love You, I'm Sorry" before giving her own interpretation of a Counting Crows classic.

Abrams, meanwhile, wore a white knit halterneck gown that featured a delicate scalloped neckline and floral filet lace, similar to the slightly sheer crochet styles that Birkin often wore in the late ‘60s. Abrams rounded out her look with stud earrings and black leather flats.

Recap of FireAid LA from Billie Eilish, Gracie Abrams and Tate McRae to Katy Perry and all of the surprise guests.

Many fans, including myself, are baffled by the recent announcement that Dora Jar will be the opening act for The Secret of Us Tour’s Europe shows,” the change.org petition began.

The FireAid concert witnessed some mic-dropping performances from a dazzling array of music legends and A-list performers including Katy Perry, Lady Gaga, P!nk, Rod Stewart, Billie Eilish, and Nirvana.

Pink, who always dials it up to 100, performed Janis Joplin's “Me and Bobby McGee” and Led Zeppelin's “Babe I'm Gonna Leave You.” While introducing John Mayer, she addresses the crowd: “Ladies and gentlemen, and every other gender which absolutely exists,” seemingly a reference to President Trump's “two gender” declaration.

Contributions made to FireAid at fireaidla.org will be distributed under the advisement of the Annenberg Foundation for both short-term relief efforts and long-term initiatives to prevent future fire disasters.

Follow live updates on the FireAid benefit concert, which will feature performances from Billie Eilish, Lady Gaga and more, as they raise money for Los Angeles-area wildfire victims.

Proceeds raised by the FireAid benefit concert will help those affected by the wildfires by raising money "for rebuilding communities devastated by wildfires and supporting efforts to prevent future fire disasters throughout Southern California," according to a press release.

Marleen Moise/WireImage Gracie Abrams is speaking out after a fan started a petition to replace the opening act for her upcoming tour dates, calling the move "so wildly uncool and bizarre."

The FireAid benefit concert, a one-night-only event, was held at the Intuit Dome and the Kia Forum in Los Angeles, with performances at each venue. Billie Eilish, Earth, Wind and Fire, Gracie Abrams,

Nirvana, Lady Gaga, Billie Eilish, Green Day, Stevie Nicks, No Doubt and more performed at the Los Angeles benefit concert FireAid.