Dave Grohl was so touched by a Weezer cover of Nirvana, it brought him to tears.

Weezer did a cover of Lithium at the Rock in Rio festival in Brazil, dedicating the song to the former Nirvana drummer.

Rivers Cuomo apparently introduced the song as a “teaser” for the Foo Fighters, who headlined the massive festival.

Grohl shared his appreciation when the Foos hit the stage, dedicating Big Me to Weezer and thanking them for the tribute.

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