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Foo Fighters are inviting some show-stopping guests on stage during their festival circuit this year.
While at Lollapalooza Chile, the Foo's brought festival founder Perry Farrell onstage. Dave Grohl made sure to have fans give Jane's Addiction frontman a warm welcome, saying, "he's the reason why we're all here."
Farrell walked on the stage with a wine glass in hand.
He made some remarks to the crowd including "¡Viva Chile!" before jamming out to his band's 1990 hit "Been Caught Stealing."