Speaking to Billboard, he said, "We plan to do shows all over the world. When I came up with the idea of taking all these performers to the live stage a few months ago, my idea [was] to have video presentations between each performance. We'll have that at the next shows."

In addition to the rest of the Foo Fighters, the Sound City Players include a number of other artists who contributed to the upcoming Sound City: Reel To Reel soundtrack, including Rick Springfield, Stevie Nicks, John Fogerty, Krist Novoselic of Nirvana and more.

Grohl also told Billboard about the surprise collaboration between Paul McCartney and the surviving members of Nirvana, saying it was the biggest secret of the Sound City project. He said, "A few things leaked out, but the McCartney thing -- we couldn't give [that information] away because this is -- spoiler alert -- THE moment. At the first few test screenings we did, the moment where Paul appears there were audible gasps in the room. When we were editing that segment, I said 'I don't want a holy s**t moment, I want a HOLY F**K moment.' I was at a screening in Salt Lake City and that moment he appears onscreen, you could just hear [the audience say] 'Jesus Christ' as if the thing couldn't be tied up in a more beautiful bow than that. It really creates a cool moment."

Sound City will screen in a number of theaters around the country for one-night-only, starting January 31, with a video-on-demand release on February 1 as well. Grohl says of the decision to release the film in this manner, "I don't really know anything about the movie business, but we decided we were going to direct to consumer right out of the gate and with Video on Demand. You can come to our website and get the film DRM-free and evidently that's not what everyone does. It seemed like the perfect idea for this film because it makes it available to anyone who wants to see it. We're passionate about the message of the film so it's important to us that as many people see it as soon as possible."

The Sound City: Reel To Reel soundtrack will be released on March 12.