Speaking to Billboard.com, Grohl said more shows are forthcoming. "We plan to do shows all over the world," promised the Foo Fighters frontman. "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."

The 17-musician supergroup � which includes John Fogerty, Stevie Nicks, Rick Nielsen and other high-profile players, made its debut at the Sundance Film Festival on January 18. Uniting the band members is the fact that they all recorded albums at the legendary Sound City studio in Van Nuys, California. In his film documentary about Sound City, Grohl spoke with everyone from Neil Young to Barry Manilow about what made the studio special.