MusicAlex RawlsMay 19, 2019blues jam, classic rock, concrete and gold, crowd size, Dave Grohl, Foo Fighters, House of Blues, review, rock, Sonic Highways, The Fillmore, VoodooComment Foo Fighters FInd Their Perfect Crowd Size at The Fillmore MusicAlex RawlsMay 19, 2019blues jam, classic rock, concrete and gold, crowd size, Dave Grohl, Foo Fighters, House of Blues, review, rock, Sonic Highways, The Fillmore, VoodooComment