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

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.

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.

FireAid, a sprawling benefit concert for wildfire relief, featured Joni Mitchell, Stevie Wonder, Billie Eilish, Lady Gaga, members of Nirvana and dozens more.

A rotating group of women vocalists joined the surviving members of the legendary '90s band for a raucous reunion set.

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

In the past few weeks, people have been planning many, many benefits for the victims of the recent Los Angeles wildfires. The biggest of those shows went down last night: FireAid, a gigantic all-star spectacular that took over both the Intuit Dome and the Kia Forum.

Nirvana brought out St. Vincent, Kim Gordon, Joan Jett, and Violet Grohl during a surprise reunion set at FireAid.

The band also brought out Dave Grohl's 18-year-old daughter, Violet Grohl, to wrap up the set with an emotional rendition of "All Apologies"

Joan Jett and Violet Grohl also joined Dave Grohl, Krist Novoselic, and Pat Smear for a handful of Nirvana classics

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