Greta Van Fleet has unexpectedly released a new song called “When The Curtain Falls.” It hasn’t been made clear, but it seems the song could be the first music to emerge from the young Michigan act’s first full-length LP, which is expected out later this year. The band played in Michigan clubs for six years before rocketing to the top of the rock radio charts last year with “Highway Tune.” That track is taken from the Black Smoke Rising EP, one of two EPs that the band released last year. Greta Van Fleet recently announced a brand new slew of tour dates that will extend the young band’s current road schedule well into the fall. The latest additions to the itinerary begin on September 7th in Seattle and end — at least for the time being — on October 11th in Madison, Wisconsin.