Then came what was perhaps the biggest surprise: Violet Grohl, Dave’s 18-year-old daughter, singing lead vocals on Nirvana’s In Utero highlight “All Apologies.” Her vocals were strong and well-suited for the song, and while the magnitude of the Kia Forum’s crowd wasn’t lost on her, she was remarkably comfortable in front of the massive crowd.

The surviving members of Nirvana reunited at FireAid with guest vocalists St. Vincent, Kim Gordon, Joan Jett and Violet Grohl.

Surviving Nirvana members Dave Grohl and Krist Novoselic and former touring guitarist Pat Smear reunited at the California wildfires benefit concert FireAid on Thursday night. They played four Nirvana classics with the help of some guest vocalists.

The surviving members of Nirvana — drummer Dave Grohl and bassist Krist Novoselic, as well as touring guitarist Pat Smear — reunited for the first time in five years at the FireAid benefit concert.

Dave Grohl, Krist Novoselic and Pat Smear reunited and were helped by variety of guest vocalists for a Nirvana performance at the FireAid benefit concert.

From surprise guests to touching moments of humility, here were the most memorable moments from the Jan. 30 FireAid benefit concerts in Los Angeles.

Joan Jett, Kim Gordon and St. Vincent also joined Dave Grohl, Krist Novoselic and Pat Smear onstage at the charity fundraiser in Los Angeles

A trio of singers filled in for Kurt Cobain as Dave Grohl, Pat Smear and Krist Novoselic performed "Breed," "School" and "Territorial Pissings.”

Dave Grohl turned his FireAid concert Nirvana reunion into a family affair. Grohl, 56, and his fellow surviving Nirvana members, Krist Novoselic and Pat Smear, were joined by several celebrity guests during their set at the Thursday,

The surviving members of Nirvana reunited for a surprise performance at the FireAid benefit concert in Los Angeles, California last night (January 30th), with the grunge icons having hit the stage to play a few classic songs alongside guest musicians St. Vincent, Kim Gordon, Joan Jett, and Violet Grohl.

Dave Grohl, Krist Novoselic and Pat Smear performed at the star-studded benefit, alongside Green Day, Billie Eilish, Lady Gaga, Red Hot Chili Peppers and loads of others

FireAid had some surprises in store, but none bigger than the first reunion from Nirvana's surviving members in over a decade.