Dave Grohl’s Sound City Players supergroup performed at the Sundance Film Festival in Utah on January 19 to launch Grohl’s ‘Sound City: Real To Reel’ documentary. Grohl’s supergroup featured Stevie Nicks (Fleetwood Mac), John Fogerty (Creedence Clearwater Revival), Corey Taylor (Slipknot), Rick Nielsen (Cheap Tric), Pat Smear and Krist Novoselic (Nirvana), Brad Wilk (Rage