Left Field Messiah sees Steve Bays (Hot Hot Heat), Jeremy Ruzumna (Fitz & The Tantrums), and Erik Janson (formerly Wildling) coming together to create energizing, genre-crushing music. “Young Libertine” came from a guitar line Erik (Janson) was noodling that Jeremy flipped as he started playing along on the mellotron, adding some crazy chords as he …