Dave Grohl Reflects on 'Foo Fighters: Sonic Highways' Series, Says Next Project Will Be 'Bigger'

"I never questioned [the reception]," he said. "I thought, 'This is something that people will appreciate whether they like the Foo Fighters or not. This is something that will hopefully inspire people to fall in love with music just as all of these people [on the show] did.' So I wasn't nervous or scared, but I had no f--kin' idea how much work it would be."

Grohl and the band visited Chicago, Washington D.C., Nashville, Austin, Los Angeles, New Orleans, Seattle and NYC for the documentary series. The singer interviewed Buddy Guy, Jimmy Iovine and President Barack Obama.

"When I sit down to interview people, I don't hold questions and I don't know the answers," he added. "They're more like conversations that become lessons. You just keep chasing the carrot and thinking, "I'm gonna get it. I'm gonna get it." You never get it. When you're sitting face to face with Dolly Parton, you're not thinking of putting a song together or an editing booth."

Grohl said that he has 1,300 hours of footage that didn't air for the show. He had such a good experience making the doc series that he's already planning his next one.

"Bigger," he said about the follow-up. "Sonic Highways has just opened up a whole new world of possibilities for the band and for me."

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Dave Grohl, Foo Fighters, KISS, Paul Stanley, Public Enemy, Chuck D, Rick Rubin, Buddy Guy, Jimmy Iovine, President Barack Obama, Dolly Parton