Those lovable NY art-punks Les Savy Fav have schooled us on drug lingo and perfume ads and patterned products, but gearing up for last week's Randall Island show with Arcade Fire, LCD Soundsystem, Blonde Redhead, and Wild Light, the "obscure underground band" decided to document the hopes, dreams, and backstage chicanery that goes into rocking out for 25,000 with all ...