Avid readers of Epiphone.com know that Dave Grohl brought his Epiphone Jack Casady bass to the Sundance Film Festival last weekend to kick off his all-star Sound City tributes jams.  Grohl recently spoke candidly with KROQ about his "Sir-vana" performance with members of Nirvana and Paul McCartney at the 12-12-12 Sandy Benefit Concert in New York.  Their one time collaboration,"Cut Me Some Slack," was the result of a friendship that's been slowly building after jamming "a bunch of times" at various awards shows.  Last year, Grohl asked McCartney to help him with his documentary dedicated to Sound City Studios and Macca responded right away.

“As we were filming all of these performances, I was just like, ‘Hey dude, why don’t you come down and jam?’,” Grohl said. “He’s like, ‘OK.

Epiphone and "Sir-vana"He comes down and he brings the bass that he’s played for 40 years and the Les Paul that there’s only four of in the world. And then he brings his guitar made out of a cigar box – it’s called a cig-fiddle. And he’s like ‘Oh I think I’ll play this, why don’t you play a bit of drums?’ And we just jammed, and we wrote this song in about and hour and recorded it. We walked in, we jammed it. It came out of nowhere – the best songs happen that way. We recorded it live and put a vocal over it and that was it. It was three hours and it was perfect.”

Grohl goes on to call McCartney "the sweetest, nicest, most awesome person” and said he epitomizes the kind of creative spark that people found at Sound City Studios.

“The movie is really mostly about the human element of music,” said Grohl. “What it’s like to just get together with a person and write a song in a room in a day. It doesn’t have to be perfect but that’s how the magic happens. When you get four human beings playing with each other, you get the Beatles or the Rolling Stones. That’s where the magic happens.”