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

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.

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.

Four months after admitting he fathered a child outside his marriage, the Foo Fighters frontman performed with one of his daughters.

Violet Grohl joined her father, Dave Grohl, and his former Nirvana members for a performance of ‘All Apologies’ at the FireAid benefit concert

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

Nirvana surprised an unsuspecting crowd when the band's surviving members reunited Thursday at LA's FireAid benefit concert with a cast of singers.

Dave Grohl performed alongside his oldest daughter Violet Grohl, whom he shares with Jordyn Blum, four months after revealing he had another baby with another woman.

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

A ‘Hervana’ performance at the FireAid benefit concert in California was met with a rapturous reception from fans of the Nineties rock band

The surviving members of Nirvana reunited at FireAid, rocking through four of the grunge giant’s classic tracks. The unannounced performance marked Dave Grohl ’s return to the stage following public acknowledgement in September that he fathered a child out of wedlock.