GRETA VAN FLEET HAS ALREADY MASTERED classic rock posturing. In early October, singer Josh Kiszka, 22, emerged onstage at the Foo Fighters-curated Cal Jam in San Bernardino, Calif., dressed in flamboyant tie-dye, beads and feathers, waving an arm in the air and letting out a signature wail. His twin, guitarist Jake, leaned back, his hippie-like long hair blowing in the breeze, to share the mic on soulful ballad “You’re the One” off their debut album, Anthem of the Peaceful Army, out Oct. 19.
It’s an increasingly rare sight at festivals these days. Over the past year, the Michigan-bred band has consistently been one of the only rock groups excelling in a hip-hop economy, dotting lineups from Coachella to Austin City Limits and delivering a big, warm sound that echoes…
