It's a very special ride this week as the audience of AMPERS sister station KAXE joins the KMSU riders and listeners to celebrate the music of Grand Rapids Riverfest, on September 6th. Included: Alan Sparhawk,; Trampled by Turtles; Charlie Parr, Emily Parr; Jeremie Albino; Margo Price; Billy Strings; Low; Courtney Barnett