Dave Grohl's Van-Touring Doc 'What Drives Us': 11 Things We Learned Dave Grohl's Van-Touring Doc 'What Drives Us': 11 Things We Learned From hardcore bands revolutionizing DIY touring to the Beatles farting, here's what we learned from Grohl's new ode to the road Daniel Kreps, provided by FacebookTwitterEmail “All of the biggest bands in the world, they had to start somewhere. Everybody I know started out like this: in a van,” Dave Grohl says at the onset of his new documentary What Drives Us, a film that chronicles the early touring days of some of rock’s most enduring groups, including U2, Metallica, Red Hot Chili Peppers, and, of course, the Foo Fighters.